TY - JOUR AU - Chvalina, Jan TI - Range closure extension of input-output relations of topological general systems JO - Časopis pro pěstování matematiky PY - 1983 SP - 208 EP - 213 VL - 108 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.21136/CPM.1983.108409/ DO - 10.21136/CPM.1983.108409 LA - en ID - 10_21136_CPM_1983_108409 ER -