TY  - JOUR
AU  - M. Z. Solomyak
TI  - Elliptic operators on two-dimensional manifolds
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 37
EP  - 39
VL  - 139
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_139_1_a8/
LA  - ru
ID  - DAN_1961_139_1_a8
ER  -