TY - JOUR AU - S. P. Babenko AU - A. V. Badin TI - Set-theoretic topology and some properties of the closure operation of a collection of sets JO - Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory PY - 2020 SP - 105 EP - 117 VL - 175 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTO_2020_175_a8/ LA - ru ID - INTO_2020_175_a8 ER -