TY - JOUR AU - Protasov, I. V. TI - Extraresolvability of balleans JO - Commentationes Mathematicae Universitatis Carolinae PY - 2007 SP - 167 EP - 175 VL - 48 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_2007__48_1_a12/ LA - en ID - CMUC_2007__48_1_a12 ER -