TY  - JOUR
AU  - A. V. Babin
TI  - Fractional powers of a nonlinear analytic differential operator
JO  - Sbornik. Mathematics
PY  - 1980
SP  - 9
EP  - 38
VL  - 37
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/SM_1980_37_1_a1/
LA  - en
ID  - SM_1980_37_1_a1
ER  -