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@article{DAN_1991_321_4_a4, author = {A. Dzhuraev}, title = {On the theory of overdetermined first-order systems}, journal = {Doklady Akademii Nauk}, pages = {664--669}, publisher = {mathdoc}, volume = {321}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_321_4_a4/} }
A. Dzhuraev. On the theory of overdetermined first-order systems. Doklady Akademii Nauk, Tome 321 (1991) no. 4, pp. 664-669. http://geodesic.mathdoc.fr/item/DAN_1991_321_4_a4/