TY  - JOUR
AU  - N. S. Kellin
TI  - Conditionally stationary initial-boundary value problems in
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 339
EP  - 342
VL  - 293
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_293_2_a18/
LA  - ru
ID  - DAN_1987_293_2_a18
ER  -