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@article{DAN_1970_194_2_a4, author = {A. L. Kalashnikov and S. N. Slugin}, title = {S.\,L.~Sobolev's {Hilbert} space as a variational structure}, journal = {Doklady Akademii Nauk}, pages = {261--264}, publisher = {mathdoc}, volume = {194}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_194_2_a4/} }
A. L. Kalashnikov; S. N. Slugin. S.\,L.~Sobolev's Hilbert space as a variational structure. Doklady Akademii Nauk, Tome 194 (1970) no. 2, pp. 261-264. http://geodesic.mathdoc.fr/item/DAN_1970_194_2_a4/