TY  - JOUR
AU  - L. N. Krivonosov
TI  - Parallel and normal correspondence of two-dimensional surfaces in the four-dimensional Euclidean space $E_4$
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1966
SP  - 78
EP  - 87
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1966_5_a10/
LA  - ru
ID  - IVM_1966_5_a10
ER  -