B. L. Laptev, “On the All-Union conference on non-Euclidean geometry – “150 Years of Lobachevsky's Geometry” (Kazan, 30.VI – 2.VII – 1976)”, Tr. Geom. Semin., 1978, Volume 10,Pages <nobr>6

JOURNALS // Trudy Geometricheskogo Seminara // Archive

Tr. Geom. Semin., 1978 Volume 10, Pages 6–17 (Mi kutgs233)

On the All-Union conference on non-Euclidean geometry – “150 Years of Lobachevsky's Geometry” (Kazan, 30.VI – 2.VII – 1976)

B. L. Laptev