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@article{DAN_1963_153_1_a0, author = {D. L. Berman}, title = {On the theory of semigroups of linear operators}, journal = {Doklady Akademii Nauk}, pages = {9--11}, publisher = {mathdoc}, volume = {153}, number = {1}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_153_1_a0/} }
D. L. Berman. On the theory of semigroups of linear operators. Doklady Akademii Nauk, Tome 153 (1963) no. 1, pp. 9-11. http://geodesic.mathdoc.fr/item/DAN_1963_153_1_a0/