Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{IM_1978__45_142545, author = {Allan L. Edmonds and Israel Berstein}, title = {The {Degree} and {Branch} {Set} of a {Branched} {Covering.}}, journal = {Inventiones mathematicae}, pages = {213--220}, publisher = {mathdoc}, volume = {45}, year = {1978}, zbl = {0359.55003}, url = {http://geodesic.mathdoc.fr/item/IM_1978__45_142545/} }
Allan L. Edmonds; Israel Berstein. The Degree and Branch Set of a Branched Covering.. Inventiones mathematicae, Tome 45 (1978), pp. 213-220. http://geodesic.mathdoc.fr/item/IM_1978__45_142545/