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@article{DE_1972_8_11_a4, author = {V. P. Kirlitsa}, title = {On the theory of invariance of dynamical systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1950--1956}, publisher = {mathdoc}, volume = {8}, number = {11}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_11_a4/} }
V. P. Kirlitsa. On the theory of invariance of dynamical systems. Differencialʹnye uravneniâ, Tome 8 (1972) no. 11, pp. 1950-1956. http://geodesic.mathdoc.fr/item/DE_1972_8_11_a4/