TY  - JOUR
AU  - P. E. Sobolevskii
TI  - On fractional norms in Banach space generated by the unbounded operator
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1964
VL  - 19
IS  - 6
UR  - http://geodesic.mathdoc.fr/item/RM_1964_19_6_a27/
LA  - ru
ID  - RM_1964_19_6_a27
ER  -