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@article{DE_1980_16_2_a4, author = {S. A. Grishin and V. I. Utkin}, title = {On extending the definition of discontinuous systems}, journal = {Differencialʹnye uravneni\^a}, pages = {227--235}, publisher = {mathdoc}, volume = {16}, number = {2}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_2_a4/} }
S. A. Grishin; V. I. Utkin. On extending the definition of discontinuous systems. Differencialʹnye uravneniâ, Tome 16 (1980) no. 2, pp. 227-235. http://geodesic.mathdoc.fr/item/DE_1980_16_2_a4/