%0 Journal Article %A Kaufman, Robert %T On a class of semi-group algebras %J Czechoslovak Mathematical Journal %D 1969 %P 248-251 %V 19 %N 2 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100892/ %R 10.21136/CMJ.1969.100892 %G en %F 10_21136_CMJ_1969_100892