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US3733198A
(en)
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Direct positive processes utilizing silver halide internal latent image emulsions containing high concentration of heterocyclic thione antifoggants
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DE473000C
(de)
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Verfahren zur Herstellung von lichtempfindlichen Silbersalzemulsionen
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US4440851A
(en)
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Method for the formation of a direct positive image
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US4105450A
(en)
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Spectrally sensitized positive light-sensitive o-quinone diazide containing composition
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BE818180A
(nl)
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Zilverhalogenide-emulsies met gesubstitueerd halogenide alsmedeprodukten die dergelijke emulsies bevatten
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US4966836A
(en)
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Direct positive photographic light-sensitive material
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US4910130A
(en)
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Direct positive light-sensitive silver halide photographic material
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US4262086A
(en)
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Photograph developing solution
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US2566234A
(en)
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Photographic direct positive matrix process
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US4081281A
(en)
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Developing low fogged, direct-positive silver halide emulsion with an energetic developer free from halide ions
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DD4420A
(pl)
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