TY - JOUR AU - A. G. Chentsov TI - Bitopological spaces of ultrafilters and maximal linked systems JO - Trudy Instituta matematiki i mehaniki PY - 2018 SP - 257 EP - 272 VL - 24 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_2018_24_1_a22/ LA - ru ID - TIMM_2018_24_1_a22 ER -