@article{JRAM_1976__288_151808,
     author = {R. Odoni},
     title = {On a problem of {Narkiewicz.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {160--167},
     publisher = {mathdoc},
     volume = {288},
     year = {1976},
     zbl = {0335.12019},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__288_151808/}
}