TY  - JOUR
AU  - V. G. Zadorozhniǐ
TI  - An inverse problem of the calculus of variations for systems of differential equations
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1989
SP  - 79
EP  - 82
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1989_9_a14/
LA  - ru
ID  - IVM_1989_9_a14
ER  -