R. N. Shcherbakov, “Projective invariant marks of a ruled surface belonging to a given congruence”, Dokl. Akad. Nauk SSSR, 1957, Volume 112, Number 3,Pages <nobr>390

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Dokl. Akad. Nauk SSSR, 1957 Volume 112, Number 3, Pages 390–393 (Mi dan21543)

MATHEMATICS

Projective invariant marks of a ruled surface belonging to a given congruence

R. N. Shcherbakov

Buryat State Pedagogical Institute

Presented: P. S. Aleksandrov
Received: 13.02.1956

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