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@article{DAN_1968_183_6_a1, author = {M. M. Vainberg}, title = {The unconditional extremum of functionals and the convergence of minimizing sequences}, journal = {Doklady Akademii Nauk}, pages = {1243--1246}, publisher = {mathdoc}, volume = {183}, number = {6}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_183_6_a1/} }
M. M. Vainberg. The unconditional extremum of functionals and the convergence of minimizing sequences. Doklady Akademii Nauk, Tome 183 (1968) no. 6, pp. 1243-1246. http://geodesic.mathdoc.fr/item/DAN_1968_183_6_a1/