On a class of congruences of second-order curves with a degenerate focal surface
Doklady Akademii Nauk, Tome 146 (1962) no. 4, pp. 765-766
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@article{DAN_1962_146_4_a6,
author = {V. S. Malakhovskii},
title = {On a class of congruences of second-order curves with a degenerate focal surface},
journal = {Doklady Akademii Nauk},
pages = {765--766},
publisher = {mathdoc},
volume = {146},
number = {4},
year = {1962},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1962_146_4_a6/}
}
V. S. Malakhovskii. On a class of congruences of second-order curves with a degenerate focal surface. Doklady Akademii Nauk, Tome 146 (1962) no. 4, pp. 765-766. http://geodesic.mathdoc.fr/item/DAN_1962_146_4_a6/