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@article{DE_1997_33_3_a14, author = {Yu. V. Churin}, title = {On the change in the number of discontinuity points of singular periodic solutions}, journal = {Differencialʹnye uravneni\^a}, pages = {385--389}, publisher = {mathdoc}, volume = {33}, number = {3}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1997_33_3_a14/} }
Yu. V. Churin. On the change in the number of discontinuity points of singular periodic solutions. Differencialʹnye uravneniâ, Tome 33 (1997) no. 3, pp. 385-389. http://geodesic.mathdoc.fr/item/DE_1997_33_3_a14/