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Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
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Silver Salt Photography Or Processing Solution Therefor
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(54) СПОСОБ ОТКРЫТОЙ РАЗРАБОТКИ НАГОРНЫХ МЕСТОРОЖДЕНИЙ ПОЛЕЗНЫХ 4 СКОПАЕМЫХ(54) METHOD OF OPEN DEVELOPMENT OF NAGORNY DEPOSITS USEFUL 4 OPERATED
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1.Ржевский В. В. и др. Открытые горные работы в сложных услови х. М., «Недра , 1974, с. 225.1.Rzhevsky V.V. et al. Opencast mining in difficult conditions. M., “Nedra, 1974, p. 225.2.Лысенко И.З. Принципы разработки высокогорных месторождений . Алма-Ата, «Наука, 1966, с. 143. 2. Lysenko I.Z. Principles of development of high mountain deposits. Alma-Ata, “Science, 1966, p. 143.
SU792801859A1979-07-271979-07-27Method of open-cast mining of mineral deposits on mountains
SU836354A1
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