TY  - JOUR
AU  - P. I. Lizorkin
TI  - On the theory of degenerate elliptic equations
JO  - Informatics and Automation
PY  - 1985
SP  - 235
EP  - 251
VL  - 172
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1985_172_a16/
LA  - ru
ID  - TRSPY_1985_172_a16
ER  -