TY  - JOUR
AU  - A. Dzhuraev
TI  - On the theory of overdetermined first-order systems
JO  - Doklady Akademii Nauk
PY  - 1991
SP  - 664
EP  - 669
VL  - 321
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1991_321_4_a4/
LA  - ru
ID  - DAN_1991_321_4_a4
ER  -