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@article{DE_1991_27_12_a15, author = {V. K. Romanko}, title = {Boundary value problems for degenerate systems of equations}, journal = {Differencialʹnye uravneni\^a}, pages = {2138--2147}, publisher = {mathdoc}, volume = {27}, number = {12}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1991_27_12_a15/} }
V. K. Romanko. Boundary value problems for degenerate systems of equations. Differencialʹnye uravneniâ, Tome 27 (1991) no. 12, pp. 2138-2147. http://geodesic.mathdoc.fr/item/DE_1991_27_12_a15/