@article{JRAM_1978__0303_0304_152045,
     author = {G.J. Rieger},
     title = {\"Uber {Ford-Kugeln.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--20},
     publisher = {mathdoc},
     volume = {0303_0304},
     year = {1978},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1978__0303_0304_152045/}
}