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@article{DAN_1967_177_6_a8, author = {S. S. Sannikov}, title = {Representations of a continuous group by unbounded operators}, journal = {Doklady Akademii Nauk}, pages = {1285--1288}, publisher = {mathdoc}, volume = {177}, number = {6}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_177_6_a8/} }
S. S. Sannikov. Representations of a continuous group by unbounded operators. Doklady Akademii Nauk, Tome 177 (1967) no. 6, pp. 1285-1288. http://geodesic.mathdoc.fr/item/DAN_1967_177_6_a8/