%0 Journal Article %A Poland, John %T Finite Groups with a given Number of Conjugate Classes %J Canadian journal of mathematics %D 1968 %P 456-464 %V 20 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-042-9/ %R 10.4153/CJM-1968-042-9 %F 10_4153_CJM_1968_042_9