TY - JOUR AU - Pudlák, Pavel TI - On a unification problem related to Kreisel's conjecture JO - Commentationes Mathematicae Universitatis Carolinae PY - 1988 SP - 551 EP - 556 VL - 29 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1988__29_3_a14/ LA - en ID - CMUC_1988__29_3_a14 ER -