TY  - JOUR
AU  - A. Dzhuraev
TI  - Degenerate systems of first-order partial differential systems
JO  - Doklady Akademii Nauk
PY  - 1992
SP  - 623
EP  - 627
VL  - 323
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1992_323_4_a2/
LA  - ru
ID  - DAN_1992_323_4_a2
ER  -