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@article{DAN_1990_314_5_a2, author = {N. N. Vorobjov (Jr.) and D. Yu. Grigor'ev}, title = {Determination of the number of connected components of a}, journal = {Doklady Akademii Nauk}, pages = {1040--1043}, publisher = {mathdoc}, volume = {314}, number = {5}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_5_a2/} }
N. N. Vorobjov (Jr.); D. Yu. Grigor'ev. Determination of the number of connected components of a. Doklady Akademii Nauk, Tome 314 (1990) no. 5, pp. 1040-1043. http://geodesic.mathdoc.fr/item/DAN_1990_314_5_a2/