%0 Journal Article %A Rachůnek, Jiří %A Šalounová, Dana %T Modal operators on bounded commutative residuated $\ell $-monoids %J Mathematica slovaca %D 2007 %P [321] %V 57 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_2007__57_4_a2/ %G en %F MASLO_2007__57_4_a2