%0 Journal Article %A Chajda, Ivan %A Zelinka, Bohdan %T A characterization of tolerance-distributive tree semilattices %J Czechoslovak Mathematical Journal %D 1987 %P 175-180 %V 37 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1987.102146/ %R 10.21136/CMJ.1987.102146 %G en %F 10_21136_CMJ_1987_102146