Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1973__77_177652, author = {Peter Gerl}, title = {Diskrete, mittelbare {Gruppen.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {307--318}, publisher = {mathdoc}, volume = {77}, year = {1973}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MOMA_1973__77_177652/} }
Peter Gerl. Diskrete, mittelbare Gruppen.. Monatshefte für Mathematik, Tome 77 (1973), pp. 307-318. http://geodesic.mathdoc.fr/item/MOMA_1973__77_177652/