%0 Journal Article %A Pudlák, Pavel %T On a unification problem related to Kreisel's conjecture %J Commentationes Mathematicae Universitatis Carolinae %D 1988 %P 551-556 %V 29 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1988__29_3_a14/ %G en %F CMUC_1988__29_3_a14