TY  - JOUR
AU  - N. M. Onishchuk
TI  - Certain questions on the centroaffine differential geometry of a~three-parameter family of plane elements
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1973
SP  - 63
EP  - 72
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1973_5_a8/
LA  - ru
ID  - IVM_1973_5_a8
ER  -