00710nam0-22002531i-450-990001147100403321000114710FED01000114710(Aleph)000114710FED0100011471020000920d1978----km-y0itay50------baengClosed graph theorems and webbed spacesby De WildeLondon [etc.]Pitman1978Research notes in mathematics19De Wilde,M.47086ITUNINARICAUNIMARCBK990001147100403321C-2-(1920036MA1MA1Closed graph theorems and webbed spaces344553UNINAING01