TY - JOUR AU - Gutiérrez García, Javier AU - Kubiak, Tomasz TI - Topological calculus for separating points from closed sets by maps JO - Czechoslovak Mathematical Journal PY - 2012 SP - 257 EP - 264 VL - 62 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1007/s10587-012-0010-0/ DO - 10.1007/s10587-012-0010-0 LA - en ID - 10_1007_s10587_012_0010_0 ER -