TY - JOUR AU - Arhangel'skii, A. V. TI - On a theorem of W.W. Comfort and K.A. Ross JO - Commentationes Mathematicae Universitatis Carolinae PY - 1999 SP - 133 EP - 151 VL - 40 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1999__40_1_a9/ LA - en ID - CMUC_1999__40_1_a9 ER -