TY  - JOUR
AU  - I. A. Kuzin
TI  - A variational method for determining the critical points of a
JO  - Doklady Akademii Nauk
PY  - 1990
SP  - 85
EP  - 88
VL  - 314
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1990_314_1_a20/
LA  - ru
ID  - DAN_1990_314_1_a20
ER  -