TY  - JOUR
AU  - V. A. Ditkin
TI  - On the theory of operator calculus
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 15
EP  - 17
VL  - 116
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_116_1_a2/
LA  - ru
ID  - DAN_1957_116_1_a2
ER  -