%0 Journal Article %A Rachůnek, Jiří %T DRl-semigroups and $MV$-algebras %J Czechoslovak Mathematical Journal %D 1998 %P 365-372 %V 48 %N 2 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_2_a12/ %G en %F CMJ_1998__48_2_a12