@article{GDZPPN002311984, title = {Periodicity of Branched Cyclic Covers.}, journal = {Mathematische Annalen}, volume = {217}, year = {1975}, pages = {157-174}, zbl = {0296.55001}, url = {http://dml.mathdoc.fr/item/GDZPPN002311984} }
Durfee, Alan; Kauffman, Louis. Periodicity of Branched Cyclic Covers.. Mathematische Annalen, Tome 217 (1975) pp. 157-174. http://gdmltest.u-ga.fr/item/GDZPPN002311984/