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@article{DE_1972_8_10_a4, author = {E. S. Lehnitsky}, title = {The construction of the equations of a programmed motion having extremal properties}, journal = {Differencialʹnye uravneni\^a}, pages = {1761--1766}, publisher = {mathdoc}, volume = {8}, number = {10}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_10_a4/} }
E. S. Lehnitsky. The construction of the equations of a programmed motion having extremal properties. Differencialʹnye uravneniâ, Tome 8 (1972) no. 10, pp. 1761-1766. http://geodesic.mathdoc.fr/item/DE_1972_8_10_a4/