%0 Journal Article %A Roman Drnovšek %T An irreducible semigroup of idempotents %J Studia Mathematica %D 1997 %P 97-99 %V 125 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-125-1-97-99/ %R 10.4064/sm-125-1-97-99 %G en %F 10_4064_sm_125_1_97_99