%0 Journal Article %A Pondělíček, Bedřich %T Tolerance distributive and tolerance modular varieties of commutative semigroups %J Czechoslovak Mathematical Journal %D 1986 %P 485-488 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1986.102108/ %R 10.21136/CMJ.1986.102108 %G en %F 10_21136_CMJ_1986_102108