@article{10_4153_CJM_1983_037_0,
     author = {Adjaero, Isabelle and Spiegel, Eugene},
     title = {On the {Uniqueness} of the {Coefficient} {Ring} in a {Group} {Ring}},
     journal = {Canadian journal of mathematics},
     pages = {654--673},
     year = {1983},
     volume = {35},
     number = {4},
     doi = {10.4153/CJM-1983-037-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-037-0/}
}