TY  - JOUR
AU  - A. V. Arutyunov
TI  - Degenerate quadratic forms of the calculus of variations
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 277
EP  - 281
VL  - 333
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_333_3_a0/
LA  - ru
ID  - DAN_1993_333_3_a0
ER  -