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@article{DE_1967_3_12_a7, author = {R. Gabasov and S. V. Churakova}, title = {The existence of optimal controls in systems with lag}, journal = {Differencialʹnye uravneni\^a}, pages = {2067--2080}, publisher = {mathdoc}, volume = {3}, number = {12}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1967_3_12_a7/} }
R. Gabasov; S. V. Churakova. The existence of optimal controls in systems with lag. Differencialʹnye uravneniâ, Tome 3 (1967) no. 12, pp. 2067-2080. http://geodesic.mathdoc.fr/item/DE_1967_3_12_a7/