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@article{IVM_1988_5_a3, author = {E. I. Zheleznov}, title = {Some properties of extremal values of convex functionals}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {17--25}, publisher = {mathdoc}, number = {5}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1988_5_a3/} }
E. I. Zheleznov. Some properties of extremal values of convex functionals. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1988), pp. 17-25. http://geodesic.mathdoc.fr/item/IVM_1988_5_a3/