@article{ELMA_1970__25_140990,
     author = {H.C. Williams},
     title = {Note on a {Diophantine} {Equation.}},
     journal = {Elemente der Mathematik},
     pages = {123--125},
     publisher = {mathdoc},
     volume = {25},
     year = {1970},
     zbl = {0207.35303},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1970__25_140990/}
}