Browsing by Author "Kagan, Veniamin Fedorovici, editor"
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Geometriceskie issledovanija po teorii parallel'nyh linij
Lobacevski, Nikolaj Ivanovic; Kagan, Veniamin Fedorovici, editor (Izdatel'stvo Akademii Nauk SSSR MoskvaIzdatel'stvo Akademii Nauk SSSR Leningrad, 1945)