TY  - JOUR
AU  - P. E. Sobolevskii
TI  - On fractional powers of weakly positive operators
JO  - Doklady Akademii Nauk
PY  - 1966
SP  - 1296
EP  - 1299
VL  - 166
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1966_166_6_a9/
LA  - ru
ID  - DAN_1966_166_6_a9
ER  -