%0 Journal Article %A Ježek, J. %A Kepka, T. %A Němec, P. %T Commutative zeropotent semigroups with few prime ideals %J Commentationes Mathematicae Universitatis Carolinae %D 2011 %P 501-505 %V 52 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2011__52_4_a2/ %G en %F CMUC_2011__52_4_a2