TY  - JOUR
AU  - V. G. Kopp
TI  - Ruled surfaces obtained in connection with the study of certain curve families
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1962
SP  - 67
EP  - 74
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1962_3_a7/
LA  - ru
ID  - IVM_1962_3_a7
ER  -