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@article{DE_1987_23_11_a1, author = {T. R. Gichev}, title = {A singularly perturbed linear system in a critical case}, journal = {Differencialʹnye uravneni\^a}, pages = {1851--1861}, publisher = {mathdoc}, volume = {23}, number = {11}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1987_23_11_a1/} }
T. R. Gichev. A singularly perturbed linear system in a critical case. Differencialʹnye uravneniâ, Tome 23 (1987) no. 11, pp. 1851-1861. http://geodesic.mathdoc.fr/item/DE_1987_23_11_a1/