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@article{IM2_1976_10_6_a3, author = {A. N. Rudakov and I. R. Shafarevich}, title = {Inseparable morphisms of algebraic surfaces}, journal = {Izvestiya. Mathematics }, pages = {1205--1237}, publisher = {mathdoc}, volume = {10}, number = {6}, year = {1976}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1976_10_6_a3/} }
A. N. Rudakov; I. R. Shafarevich. Inseparable morphisms of algebraic surfaces. Izvestiya. Mathematics , Tome 10 (1976) no. 6, pp. 1205-1237. http://geodesic.mathdoc.fr/item/IM2_1976_10_6_a3/