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@article{DAN_1976_228_2_a16, author = {V. I. Shevchenko}, title = {Some estimates for the number of connected components of a set of elliptic systems}, journal = {Doklady Akademii Nauk}, pages = {322--324}, publisher = {mathdoc}, volume = {228}, number = {2}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_228_2_a16/} }
V. I. Shevchenko. Some estimates for the number of connected components of a set of elliptic systems. Doklady Akademii Nauk, Tome 228 (1976) no. 2, pp. 322-324. http://geodesic.mathdoc.fr/item/DAN_1976_228_2_a16/