TY  - JOUR
AU  - D. L. Berman
TI  - On the theory of semigroups of linear operators
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 9
EP  - 11
VL  - 153
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_153_1_a0/
LA  - ru
ID  - DAN_1963_153_1_a0
ER  -