%0 Journal Article %A Švejdar, Vítězslav %T On sequent calculi for intuitionistic propositional logic %J Commentationes Mathematicae Universitatis Carolinae %D 2006 %P 159-173 %V 47 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2006__47_1_a14/ %G en %F CMUC_2006__47_1_a14