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@article{DAN_1988_303_1_a4, author = {E. N. Makhmudov}, title = {Necessary conditions for problems of optimal control that are}, journal = {Doklady Akademii Nauk}, pages = {29--33}, publisher = {mathdoc}, volume = {303}, number = {1}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_303_1_a4/} }
E. N. Makhmudov. Necessary conditions for problems of optimal control that are. Doklady Akademii Nauk, Tome 303 (1988) no. 1, pp. 29-33. http://geodesic.mathdoc.fr/item/DAN_1988_303_1_a4/