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@article{DE_1974_10_1_a10, author = {M. Meredov}, title = {The unique solvability of the {Darboux} problem for a certain degenerate system}, journal = {Differencialʹnye uravneni\^a}, pages = {89--99}, publisher = {mathdoc}, volume = {10}, number = {1}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1974_10_1_a10/} }
M. Meredov. The unique solvability of the Darboux problem for a certain degenerate system. Differencialʹnye uravneniâ, Tome 10 (1974) no. 1, pp. 89-99. http://geodesic.mathdoc.fr/item/DE_1974_10_1_a10/