@article{10_4153_CJM_1995_006_4, author = {Hoechsmann, Klaus}, title = {Units in {Integral} {Group} {Rings} for {Order} pq}, journal = {Canadian journal of mathematics}, pages = {113--131}, year = {1995}, volume = {47}, number = {1}, doi = {10.4153/CJM-1995-006-4}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1995-006-4/} }