TY  - JOUR
AU  - N. D. Yakimov
TI  - Variational theorems for problems with depression curves
JO  - Trudy seminara po kraevym zadačam
PY  - 1976
SP  - 258
EP  - 275
VL  - 13
IS  - 13
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KUKZ_1976_13_13_a28/
LA  - ru
ID  - KUKZ_1976_13_13_a28
ER  -