TY  - JOUR
AU  - A. S. Kopets
TI  - Quasiregular solutions for systems of~hypoelliptic differential equations
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1990
SP  - 25
EP  - 31
VL  - 85
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1990_85_1_a2/
LA  - ru
ID  - TMF_1990_85_1_a2
ER  -