TY - JOUR AU - Neuman, FrantiĊĦek AU - Sekanina, Milan TI - Equivalent systems of sets and homeomorphic topologies JO - Czechoslovak Mathematical Journal PY - 1965 SP - 323 EP - 328 VL - 15 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1965.100678/ DO - 10.21136/CMJ.1965.100678 LA - en ID - 10_21136_CMJ_1965_100678 ER -