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JOURNALS // Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta // Archive
Uch. Zap. Mosk. Gos. Univ., 1951 Issue 148, Pages 9–14 (Mi uzmu64)
A study of generalized interpretations of the plane geometry of Lobachevskii and its geodesic lines

D. P. Polozkov




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