@article{JRAM_1992__426_153412,
     author = {G. Cliff and J. Ritter and A. Weiss},
     title = {Group representations and integrality.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {193--202},
     year = {1992},
     volume = {426},
     zbl = {0739.20002},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1992__426_153412/}
}