@article{PORMA_1977__36_1_115299,
     author = {Yahya, Q.A.M.M.},
     title = {Fermat's last theorem - a topological verification},
     journal = {Portugaliae mathematica},
     pages = {25--31},
     publisher = {mathdoc},
     volume = {36},
     number = {1},
     year = {1977},
     mrnumber = {0535220},
     zbl = {0414.10006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1977__36_1_115299/}
}