TY - JOUR AU - MlĨek, Josef TI - $\in $-representation and set-prolongations JO - Commentationes Mathematicae Universitatis Carolinae PY - 1992 SP - 661 EP - 666 VL - 33 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1992__33_4_a10/ LA - en ID - CMUC_1992__33_4_a10 ER -