TY  - JOUR
AU  - I. A. Kipriyanov
TI  - A certain class of singular elliptic operators. I
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 2066
EP  - 2077
VL  - 7
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_11_a15/
LA  - ru
ID  - DE_1971_7_11_a15
ER  -