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Application filed by Р.М. Медведев, Е.Т. МедведеваfiledCriticalР.М. Медведев
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Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
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Отв. редактор В.Н.Костров А02854. Подписано к печати 27/III-i918 г. Тилографи Госпланиздата, Техн редактор Г. Ф. Соколова Тираж 500 экз. Цена 65 к. Злк. 305 им. Ворозского, г. Калуга