%0 Journal Article %A Faber, V. %A Laver, R. %A McKenzie, R. %T Coverings of Groups by Abelian Subgroups %J Canadian journal of mathematics %D 1978 %P 933-945 %V 30 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1978-081-1/ %R 10.4153/CJM-1978-081-1 %F 10_4153_CJM_1978_081_1