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@article{DAN_1985_285_2_a6, author = {U. Raitums}, title = {The passage to the convex hull of a set of admissible operators in}, journal = {Doklady Akademii Nauk}, pages = {289--292}, publisher = {mathdoc}, volume = {285}, number = {2}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a6/} }
U. Raitums. The passage to the convex hull of a set of admissible operators in. Doklady Akademii Nauk, Tome 285 (1985) no. 2, pp. 289-292. http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a6/