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@article{DE_1972_8_2_a14, author = {E. M. Polishchuk}, title = {Some new relations between control systems and equations of mathematical {physics.~I}}, journal = {Differencialʹnye uravneni\^a}, pages = {333--348}, publisher = {mathdoc}, volume = {8}, number = {2}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_2_a14/} }
E. M. Polishchuk. Some new relations between control systems and equations of mathematical physics.~I. Differencialʹnye uravneniâ, Tome 8 (1972) no. 2, pp. 333-348. http://geodesic.mathdoc.fr/item/DE_1972_8_2_a14/