Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1981_259_1_a9, author = {R. S. Sadyrkhanov}, title = {Some properties of finite-to-one covering maps and their applications}, journal = {Doklady Akademii Nauk}, pages = {44--49}, publisher = {mathdoc}, volume = {259}, number = {1}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a9/} }
R. S. Sadyrkhanov. Some properties of finite-to-one covering maps and their applications. Doklady Akademii Nauk, Tome 259 (1981) no. 1, pp. 44-49. http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a9/