WO2001017281A2 - Filtrage de contenu dans une passerelle d'un systeme sans fil - Google Patents

Filtrage de contenu dans une passerelle d'un systeme sans fil Download PDF

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Publication number
WO2001017281A2
WO2001017281A2 PCT/FI2000/000708 FI0000708W WO0117281A2 WO 2001017281 A2 WO2001017281 A2 WO 2001017281A2 FI 0000708 W FI0000708 W FI 0000708W WO 0117281 A2 WO0117281 A2 WO 0117281A2
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WO
WIPO (PCT)
Prior art keywords
message
gateway
specific
wap
filter
Prior art date
Application number
PCT/FI2000/000708
Other languages
English (en)
Other versions
WO2001017281A3 (fr
Inventor
Aapo Rautiainen
Original Assignee
Nokia Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Corporation filed Critical Nokia Corporation
Priority to AU67053/00A priority Critical patent/AU6705300A/en
Publication of WO2001017281A2 publication Critical patent/WO2001017281A2/fr
Publication of WO2001017281A3 publication Critical patent/WO2001017281A3/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G06Q10/107—Computer-aided management of electronic mailing [e-mailing]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/564—Enhancement of application control based on intercepted application data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/2871—Implementation details of single intermediate entities

Definitions

  • the present invention relates to a gateway that connects a wireless network and the Internet network enabling the bringing of a content from the Internet network to a wireless terminal.
  • the invention relates in particular to the filtering of a content in a gateway of the WAP system (Wireless Application Protocol).
  • Wireless communication networks and the Internet network are expanding rapidly and the number of their users is increasing. Bringing Internet contents and advanced data services to digital mobile stations, so-called media phones, is possible, e.g. with the help of WAP engineering or Smart Messaging engineering presented by Nokia.
  • WAP engineering the duty of which is to bring Internet contents to wireless terminals.
  • the contents brought to wireless terminals with the help of WAP engineering are called by the common noun of WAP content.
  • WAP engineering utilises parts of the existing standards.
  • it comprises own solutions optimised for wireless networks. The intention is to globally support as many wireless digital telecommunication networks as possible. Because the WAP system was developed only recently and because, in some cases, only frameworks for different implementations are defined in the WAP system specifications, there are no known solutions for the implementation of certain parts of the system.
  • the WAP system is based on the co-operation of three different components: a WAP terminal 10; a WAP gateway 11 ; and an origin server 12 ( Figure 1).
  • the Nokia Smart Messaging system comprises a gateway, in between a terminal and an origin server, one product version of which is called Nokia Artus Messaging Platform.
  • a user For browsing WAP contents, a user has the wireless WAP terminal 10, which comprises a WAP browser as the user interface, a so-called micro browser or some other WAP application that functions in a WAP terminal.
  • the WAP terminal 10 can be just any device that uses WAP protocol for external communication.
  • the WAP browser is analogous with a web browser.
  • the WAP gateway that comprises means for encoding and decoding is capable of transforming information that is according to WAP protocol, e.g. Internet protocol, into information that is according to HTTP protocol (HyperText Transfer Protocol), and vice versa.
  • WAP protocol e.g. Internet protocol
  • HTTP protocol HyperText Transfer Protocol
  • the WAP content obtained from the origin server 12 as a response 15 to the request can be, e.g. a WML (Wireless Markup Language) document or a WMLScript document, is sent to the WAP gateway 11 , which transforms the information according to Internet protocol into information according to WAP protocol, e.g. WSP protocol.
  • WAP protocol e.g. WSP protocol.
  • a gateway of the Nokia Smart Messaging system e.g. an HTML (Hyper Text Markup Language) document is respectively transformed, e.g. into a TTML (Tagged Text Markup Language) document.
  • the gateway 11 sends 16 the WAP content efficiently encoded for the radio path, to the user's WAP terminal 10.
  • a WAP gateway typically, there are in between a WAP gateway and a radio interface, e.g. in the GSM (Global System for Mobile communication) network, a number of elements. Typically, these are devices that are located, e.g. in a mobile services switching centre, in a base station controller or a base transceiver station.
  • the WAP gateway may physically be located, e.g. in a corporate data network. It is typically implemented by a computer program that can be run, e.g. in a Windows NT workstation.
  • the WAP gateway can be connected, e.g. to a GSM network mobile services switching centre or short message service centre.
  • the WAP gateway can be considered to be functionally in connection with the radio interface.
  • the limited data transfer capacity of a wireless network and the features of a wireless WAP terminal such as a small-sized display and limited storage space place restrictions on the WAP content to be retrieved from the Internet network to the WAP terminal.
  • the WAP content to be retrieved to the WAP terminal from the Internet network is not, in this case, suitable as such for being viewed by a user but typically, the content must be processed on several different occasions before it is transferred over the air interface on to the radio path. In other words, information that is unnecessary from the viewpoint of the wireless WAP terminal is typically removed from the content. This filtering of the content preferably takes place in the WAP gateway.
  • the processing of the content typically takes place at the end of the network browser, if any processing is required at all.
  • the processing of the content in the WAP browser of a wireless terminal is not possible in practice due to the limited storage space. And because there is a shortage of frequency bands used for data transfer in a wireless network, sending unnecessary information on to the radio path would not indeed be sensible.
  • WML pages e.g. WML-Script, MIME Multipart (Multipurpose Internet Mail Extensions), HTML pages and Error pages, as well as other content types defined in the WAP specifications.
  • the solution must be flexible, because it must be possible to add new filters to the WAP gateway, always when new content types appear.
  • the solution must be efficient, because the data transfer capacity of the radio path is limited and because all the numerous requests that come from WAP terminals go through the WAP gateway.
  • a flexible and efficient solution for filtering a WAP content.
  • a method for filtering messages in a gateway which gateway receives and processes a first message that comes from a wireless terminal and which gateway retrieves a specific second message from an origin server and supplies it to the wireless terminal, and said first and second messages belong to a specific message type of a set of message types known to the gateway.
  • a gateway which gateway comprises a specific set of filters of which each filter is arranged to carry out specific filtering for filtering messages in the gateway; means for receiving and processing a specific first message that comes from a wireless terminal; means for retrieving a specific second message from an origin server and for supplying it to the wireless terminal; and which said first and second messages belong to a specific message type of a set of message types known to the gateway. It is characteristic of the gateway that it comprises: means for determining the message type of the message that comes to the gateway; means for determining a filter chain for each message type, which filter chain is arranged to filter the message by directing it, in a specific order, through specific filters in the filter chain, depending on the message type.
  • a computer program product that can be executed by means of a computer, for filtering messages in a gateway according to the invention, which computer program product comprises: a computer program code for implementing a specific set of filters, of which each filter is arranged to carry out a specific filtration, for filtering messages in a gateway; a computer program code for receiving and processing a specific first message that comes from a wireless terminal; a computer program code for retrieving a specific second message from an origin server and for supplying it to the wireless terminal; and which said first and second messages belong to a specific message type of a set of message types known to the gateway.
  • the computer program product comprises: a computer program code for determining the message type of the message that comes to the gateway; a computer program code for determining a filter chain for each message type, which filter chain is arranged to filter the message by directing it, in a specific order, through specific filters in the filter chain, depending on the message type.
  • a filtering mechanism based on a filter chain is used in a WAP gateway.
  • Several different filter chains are defined for the WAP gateway, one for each content type.
  • a content with the headers that arrives from the Internet network to the WAP gateway is filtered in a filter chain defined for the content type in question.
  • Each filter of the filter chain performs in turn a specific task for the content, where the content and/or the headers that come along with it are edited to make them suitable for the transfer to a wireless WAP terminal, carried out along the radio path.
  • Figure 1 shows a model of the WAP system
  • FIG. 2 shows parts of a WAP gateway that are related to the processing of requests that arrive from WAP terminals
  • Figure 3 shows a preferred embodiment of filtering a WAP content according to the invention
  • Figure 4 is a flow diagram that shows a decision-making process in a response filtering unit according to the invention.
  • Figure 5 illustrates the positioning of individual filters in different filter chains according to the invention.
  • Figure 1 was explained above in connection with the explanation of prior art.
  • Figure 2 shows parts of a WAP gateway that are related to the processing of requests that come from WAP terminals along the radio path.
  • the request mentioned here can be, for example, a request for retrieving some WAP content, e.g. a WML document that contains railway guide information, from an origin server in the Internet network, to a WAP terminal.
  • COMM 20 (Communication interface) is in a WAP gateway an interface over which messages, e.g. a request according to WSP protocol or a so-called push request that have come from WAP terminals to a WAP protocol stack 25 of the gateway, are transferred from the protocol stack to a request handling unit 21.
  • the gateway's WAP protocol stack (WPS) 25 comprises protocols for communication between the gateway and a WAP terminal. These are not shown in the figure.
  • the request handling unit 21 is preferably a so-called run time unit. It is a computer program, which can be run alone but which alone performs nothing sensible. In other words, it needs around it other computer programs or parts of a computer program in order to operate sensibly, as will be presented next.
  • the decoding of a request that comes from a WAP terminal and its changing into a format that is understood by the gateway logic is carried out in a request filtering unit 22, which is hidden behind a request filter facade.
  • the program logic checks what kind of request it is a question of, i.e. the message type of the request in question is checked.
  • the filtering of the request comprises slightly different kinds of stages depending on whether the request is of the message type of, e.g. an ordinary WSP request or a push request. If it is a question of a normal WSP request, the request will go through the filter chain determined for a WSP request, if again it is a question of a push request, the request will go through the filter chain determined for a push request.
  • Each filter of the filter chain performs in turn a specific task for the request, which may be related, e.g. to the decoding of the request. After the filtering of the request, the filtered request will be returned to the request handling unit 21.
  • the desired WAP content is retrieved from the Internet or Intranet: from an origin server 23, to a WAP gateway over a content source facade. This will take place as a result of a request made by the request handling unit 21 to the content source facade.
  • the request handling unit 21 directs the content and headers relating thereto to a response filter facade in a response filtering unit 24.
  • the response filtering unit 24 carries out the filtering of the content and the headers relating thereto for the radio path.
  • Each filter of the filter chain performs in turn for the request a specific task that is typically related to the filtering of the content for the radio path.
  • the filtered content with its headers is returned to the request handling unit 21 , which uses the COMM interface 20 for returning the response to the WAP protocol stack 25 from which the response will be forwarded along the radio path, to a WAP terminal.
  • the response filtering unit 24 is shown in more detail in Figure 3. It illustrates a filter chain 31 - 35 that is used for the filtering of a WAP content, which WAP content in this explanatory case is a WML page, i.e. in this explanatory case, the content type is WML.
  • the request handling unit 21 When the desired WAP content (WML page) with its headers arrives from the origin server 23 to the gateway, the request handling unit 21 consequently directs it and the headers relating thereto to a request filter facade 30 in the response filtering unit 24.
  • the response filter facade 30 now studies from the headers sent with the WAP content, what the content type; message type, of the content is. This is done by studying the content type field of a header. When the content type is WML, the content type field typically reads "text/x-wap.wml". From this, the response filter facade 30 concludes that the content is a WML page and makes it go through the filter chain 31 - 35, defined for the WML content type.
  • Filter chains are defined in a configuration file of the gateway, wherein symbolic names are used for the filters.
  • the filter chain WML_Chain defined for the WML content type, preferably comprises the following filters: UAProf 31 (User Agent Profile); WML_Encoder 32; Range_Filter 33; Header_Filter 34; Header_Encoder 35.
  • the filter chain WML_Chain may also include other filters.
  • Each filter 31 - 35 of the filter chain performs in turn, in sequence, some simple task in the filtering of the content.
  • the WML content with its headers is filtered first in the filter UAProf 31 , which carries out for the content the changes required by the User Agent Profile of the WAP terminal that sent the request. Changes are needed because WAP browsers that function in different WAP terminals may, e.g. support different WML versions (e.g. Version 1.0 or 1.1 ).
  • the WML content (WML page) is efficiently encoded for the radio path in the filter WML_Encoder 32.
  • the encoding may take place, e.g. according to the specification; Binary XML Content Format Specification, defined by the WAP Forum.
  • the specification in question is part of the definition of the WAP protocol version 1.1.
  • the WAP terminal can make a WAP request that corresponds to the range request of the HTTP protocol version 1.1.
  • the WML page (and the related images, sounds, etc.) are sent to the WAP terminal in parts. For example, first the bytes 0 - 999 can be requested, then the bytes 1000 - 1999, and so on.
  • the third filter, Range_Filter 33 selects from the page encoded by the WML_Encoder, the requested byte link.
  • the header of the WML page is efficiently encoded for the radio path, into a header according to WSP protocol.
  • Encoding is based on the WSP protocol version 1.1 , defined by the WAP Forum. In encoding, headers that are in the text format are replaced by bytes defined in the WSP specification. After this, the WSP content with its headers is returned to the request handling unit 21.
  • the filtered WAP content is sent through the radio path to a WAP terminal, e.g. to a mobile station. In the WAP browser of the mobile station, the WAP content is displayed on a display. In the mobile station, the content does not have to be processed any more by filtering. Similar filter chains are also defined for the response filtering unit as for the other content types. Also for the request filtering unit, filter chains are defined for a normal WAP request (WSP request) and a push request, in a similar manner.
  • WSP request normal WAP request
  • push request in a similar manner.
  • One filter may belong to more than one chain.
  • One and the same filter may also belong to filter chains used in both request filtering and response filtering.
  • Each WAP content is only filtered in those filters that are necessary exactly for the content type in question.
  • the program code can be programmed, e.g. in some object programming language, preferably Java programming language.
  • Filter chains and the filters that belong thereto are defined in a configuration file.
  • the configuration file comprises rows, wherein the name of a filter chain and the filters that belong thereto, in the order of filtration, are determined by symbolic names.
  • the row that determines the above-mentioned filter chain WML_Chain may look, for example, as follows:
  • WML_CHAIN UAPROF:WML_ENCODER:RANGE_FILTER:HEADER_FILTER:H EADER_ENCODER;
  • WML_CHAIN is the symbolic name of the filter chain to be used for filtering the WML content.
  • UAPROF is the symbolic name of the first filter to be implemented,
  • WML_ENCODER is the symbolic name of the second filter to be implemented and so on.
  • the correspondence between the symbolic names and the actual Java classes is also defined in the configuration file.
  • the Java classes are taken into use when the WAP gateway is initiated, whereupon from the Java classes, objects; instances of the class, are created which in fact act as filters in the filter chain.
  • FIG 4 is a flow diagram that illustrates a decision-making process according to the invention in the response filtering unit 24 of a WAP gateway.
  • the content types are classified as known and unknown types.
  • Known content types are, among others, WML, WML-Script, MIME Multipart, HTML, and Error pages, as well as other content types defined in the WAP specifications.
  • a request handling unit directs it and the headers related thereto to a response filter facade in a response filtering unit.
  • the response filter facade now determines from the headers sent with the WAP content, what the content's content type is (42).
  • a filter chain that is defined for the content type in question will be used for filtering the content (44). If again the content type is unknown to the WAP gateway, the WAP content is allowed to pass through a binary filter, which will not touch the content itself, but only filters the headers (45).
  • the filtered content is directed to the WAP protocol stack of the gateway and from there further to the WAP browser of a user's wireless WAP terminal, with the help of normal WAP routines (block 46).
  • a filtering mechanism based on a filter chain provides for filters to be easily concatenated and, therefore, supports the upgrading of the different components. If a new content type appears it is easy to define, in the configuration file, a filter chain for the new content type, which it will go through.
  • the filter chain concept also provides an efficient way to filter a WAP content, because each WAP content only goes through those filters that are necessary exactly for the content type in question.
  • Figure 5 illustrates the positioning of individual filters in different filter chains, in an imaginary case.
  • a gateway comprises a program code, wherein filters AA, BB, CC, DD, EE, FF and GG are implemented.
  • the gateway knows three different content types for contents than arrive from the Internet (response) for the filtering of which filter chains K, L and M are used.
  • the gateway knows two request types for requests that come from a WAP terminal, for the filtering of which filter chains P and R are used. The system administrator determines the filters to be used in the filter chains in question.
  • K comprises, in sequence, the filters AA, BB, CC and DD; the filter chain L comprises the filters AA, CC and GG; and the filter chain M comprises the filters AA, CC, EE, FF and GG.
  • P comprises, in sequence, the filters AA, BB, CC and FF; and R comprises the filters BB and CC.
  • a gateway according to the invention can be implemented programmably.
  • the computer program product in question can be stored in a data medium, e.g. a memory, it can be transferred, and it can be run in a computer.

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Abstract

L'invention concerne un procédé permettant de filtrer des messages dans une passerelle, laquelle reçoit et traite un premier message spécifique qui provient d'un terminal sans fil puis récupère un second message spécifique auprès du serveur d'origine et l'envoie au terminal sans fil. Ce premier et ce second message appartiennent à un type spécifique de message faisant partie d'un ensemble de types de messages reconnus par la passerelle. Dans ce procédé, une chaîne de filtrage (WML_Chain) est déterminée pour chaque type de message reconnu par la passerelle. Cette chaîne de filtrage définit des filtres (31 - 35) permettant de filtrer un message correspondant à un type de message particulier. Ces filtres (31 - 35) sont arrangés mutuellement selon un ordre spécifique dans la chaîne de filtrage. La passerelle reçoit un message et détermine à quel type ce message appartient. Ensuite ce message est filtré par les filtres (31-35) composant la chaîne de filtrage définie pour le type du message en question, dans l'ordre défini pour cette chaîne de filtrage. L'invention concerne également une passerelle permettant de filtrer un contenu au moyen du procédé décrit ci-dessus, et un produit programme informatique permettant la mise en oeuvre de cette passerelle.
PCT/FI2000/000708 1999-08-31 2000-08-21 Filtrage de contenu dans une passerelle d'un systeme sans fil WO2001017281A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67053/00A AU6705300A (en) 1999-08-31 2000-08-21 Content filtering in a gateway of a wireless system

Applications Claiming Priority (2)

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FI19991845 1999-08-31
FI991845A FI19991845A (fi) 1999-08-31 1999-08-31 Sisällön suodatus langattoman järjestelmän yhdyskäytävässä

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WO2001017281A2 true WO2001017281A2 (fr) 2001-03-08
WO2001017281A3 WO2001017281A3 (fr) 2001-06-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1239647A1 (fr) * 2001-03-09 2002-09-11 Cegetel Groupe Procédé et dispositifs de sécurisation d'une session de communication
WO2004047465A2 (fr) * 2002-11-18 2004-06-03 Jens Hewerer Procede et dispositif de transmission de messages
WO2005112392A2 (fr) * 2004-05-19 2005-11-24 Surf Communication Solutions, Ltd. Transmission de video sur ip
KR20190053048A (ko) * 2017-11-09 2019-05-17 콘텔라 주식회사 로라 망에서 단말 관리 및 메시지 필터링을 제공하는 장치 및 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000039666A1 (fr) * 1998-12-28 2000-07-06 Spyglass, Inc. Procede et systeme servant a transformer le contenu de donnees electroniques pour des dispositifs sans fil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000039666A1 (fr) * 1998-12-28 2000-07-06 Spyglass, Inc. Procede et systeme servant a transformer le contenu de donnees electroniques pour des dispositifs sans fil

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Wireless Application Protocol Architecture Specification" WAP ARCHITECTURE; VERSION 30-APR-1998, pages 1-20, XP002901466 *
METTER M ET AL: "WAP enabling existing HRML applications" IEEE; USER INTERFACE CONF 2000, 3 February 2000 (2000-02-03), pages 49-57, XP002901467 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1239647A1 (fr) * 2001-03-09 2002-09-11 Cegetel Groupe Procédé et dispositifs de sécurisation d'une session de communication
FR2822007A1 (fr) * 2001-03-09 2002-09-13 Cegetel Procede et dispositifs de securisation d'une session de communication
WO2004047465A2 (fr) * 2002-11-18 2004-06-03 Jens Hewerer Procede et dispositif de transmission de messages
WO2004047465A3 (fr) * 2002-11-18 2004-08-19 Jens Hewerer Procede et dispositif de transmission de messages
WO2005112392A2 (fr) * 2004-05-19 2005-11-24 Surf Communication Solutions, Ltd. Transmission de video sur ip
WO2005112392A3 (fr) * 2004-05-19 2005-12-22 Surf Comm Solutions Ltd Transmission de video sur ip
KR20190053048A (ko) * 2017-11-09 2019-05-17 콘텔라 주식회사 로라 망에서 단말 관리 및 메시지 필터링을 제공하는 장치 및 방법
KR102015612B1 (ko) 2017-11-09 2019-08-28 콘텔라 주식회사 로라 망에서 단말 관리 및 메시지 필터링을 제공하는 장치 및 방법

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AU6705300A (en) 2001-03-26
WO2001017281A3 (fr) 2001-06-14
FI19991845A (fi) 2001-02-28

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