TY  - JOUR
AU  - V. M. Savchin
TI  - A criterion for the existence of generalized integral variational principles for given equations
JO  - Differencialʹnye uravneniâ
PY  - 1993
SP  - 1425
EP  - 1432
VL  - 29
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1993_29_8_a16/
LA  - ru
ID  - DE_1993_29_8_a16
ER  -