TY  - JOUR
AU  - A. B. Kotlyar
TI  - On an upper bound on extrinsic curvatures for some classes of multidimensional surfaces in an $n$-dimensional Lobachevskii space
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1993
SP  - 9
EP  - 18
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1993_8_a1/
LA  - ru
ID  - IVM_1993_8_a1
ER  -