%0 Journal Article %A Kühr, Jan %T Pseudo $BL$-algebras and $DR\ell $-monoids %J Mathematica Bohemica %D 2003 %P 199-208 %V 128 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2003.134040/ %R 10.21136/MB.2003.134040 %G en %F 10_21136_MB_2003_134040