@article{ELMA_1987__42_4_141403,
     author = {A. Rotkiewicz},
     title = {Note on the diophantine equation 1 + x + x2 + ... + xn = ym.},
     journal = {Elemente der Mathematik},
     pages = {76--76},
     publisher = {mathdoc},
     volume = {42},
     number = {4},
     year = {1987},
     zbl = {0703.11016},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1987__42_4_141403/}
}