@article{DE_1972_8_5_a14,
     author = {E. M. Polishchuk},
     title = {Certain new connections of control systems with equations of mathmatical {physics.~II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {857--870},
     publisher = {mathdoc},
     volume = {8},
     number = {5},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_5_a14/}
}