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@article{DE_1984_20_11_a19, author = {By Kim Tuan}, title = {The number of solutions of a system of partial differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {1989--1992}, publisher = {mathdoc}, volume = {20}, number = {11}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_11_a19/} }
By Kim Tuan. The number of solutions of a system of partial differential equations. Differencialʹnye uravneniâ, Tome 20 (1984) no. 11, pp. 1989-1992. http://geodesic.mathdoc.fr/item/DE_1984_20_11_a19/