@article{10_4153_CJM_1998_001_9,
     author = {Amberg, B. and Dickenschied, O. and Sysak, YA. P.},
     title = {Subgroups of the {Adjoint} {Group} of a {Radical} {Ring}},
     journal = {Canadian journal of mathematics},
     pages = {3--15},
     year = {1998},
     volume = {50},
     number = {1},
     doi = {10.4153/CJM-1998-001-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1998-001-9/}
}