@article{CMH_1987__62_140074, author = {Michael N. Dyer}, title = {Localization of group rings and applications to 2-complexes.}, journal = {Commentarii mathematici Helvetici}, pages = {1--17}, year = {1987}, volume = {62}, zbl = {0626.57001}, url = {http://geodesic.mathdoc.fr/item/CMH_1987__62_140074/} }