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@article{DE_1973_9_9_a20, author = {M. M. Kopets}, title = {The optimal control of a system with free initial and final states in {Hilbert} space}, journal = {Differencialʹnye uravneni\^a}, pages = {1728--1729}, publisher = {mathdoc}, volume = {9}, number = {9}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_9_a20/} }
M. M. Kopets. The optimal control of a system with free initial and final states in Hilbert space. Differencialʹnye uravneniâ, Tome 9 (1973) no. 9, pp. 1728-1729. http://geodesic.mathdoc.fr/item/DE_1973_9_9_a20/