@article{2809, author = {Yahya, Q.A.M.M.}, title = {Fermat's last theorem - a topological verification}, journal = {Portugaliae mathematica}, volume = {36}, year = {1977}, pages = {25-31}, zbl = {0414.10006}, mrnumber = {0535220}, language = {en}, url = {http://dml.mathdoc.fr/item/2809} }
Yahya, Q.A.M.M. Fermat's last theorem - a topological verification. Portugaliae mathematica, Tome 36 (1977) pp. 25-31. http://gdmltest.u-ga.fr/item/2809/