@article{GDZPPN002337444, title = {The arithmetic of Fermat curves.}, journal = {Mathematische Annalen}, volume = {293}, year = {1992}, pages = {503-512}, zbl = {0766.14013}, url = {http://dml.mathdoc.fr/item/GDZPPN002337444} }
McCallum, William G. The arithmetic of Fermat curves.. Mathematische Annalen, Tome 293 (1992) pp. 503-512. http://gdmltest.u-ga.fr/item/GDZPPN002337444/