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@article{DE_1989_25_4_a14, author = {E. P. Kubishkin}, title = {Self-oscillatory solutions of a class of singularly perturbed boundary value problems}, journal = {Differencialʹnye uravneni\^a}, pages = {674--685}, publisher = {mathdoc}, volume = {25}, number = {4}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1989_25_4_a14/} }
E. P. Kubishkin. Self-oscillatory solutions of a class of singularly perturbed boundary value problems. Differencialʹnye uravneniâ, Tome 25 (1989) no. 4, pp. 674-685. http://geodesic.mathdoc.fr/item/DE_1989_25_4_a14/