%0 Journal Article %A Petrich, Mario %T Bases for certain varieties of completely regular semigroups %J Commentationes Mathematicae Universitatis Carolinae %D 2021 %P 41-65 %V 62 %N 1 %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2021.005/ %R 10.14712/1213-7243.2021.005 %G en %F 10_14712_1213_7243_2021_005