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@article{DAN_1966_168_2_a4, author = {A. D. Ioffe}, title = {Transformation of correctly posed variational problems}, journal = {Doklady Akademii Nauk}, pages = {269--272}, publisher = {mathdoc}, volume = {168}, number = {2}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1966_168_2_a4/} }
A. D. Ioffe. Transformation of correctly posed variational problems. Doklady Akademii Nauk, Tome 168 (1966) no. 2, pp. 269-272. http://geodesic.mathdoc.fr/item/DAN_1966_168_2_a4/