@article{JRAM_1982__330_152410,
     author = {J.H. Loxton and A.J. van der Poorten},
     title = {Arithmetic properties of the solutions of a class of functional equations.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {159--172},
     publisher = {mathdoc},
     volume = {330},
     year = {1982},
     zbl = {0468.10019},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1982__330_152410/}
}