00724nam0-22002531i-450-990001172290403321000117229FED01000117229(Aleph)000117229FED0100011722920000920d1974----km-y0itay50------baengTopology and Borel Structureby CHRISTEN SEN.Amsterdam [etc.]North-Holland1974North-Holland mathematics studies10Christensen,Jens Peter Reus54423ITUNINARICAUNIMARCBK990001172290403321C-21-(1014978MA1MA1Topology and Borel Structure345976UNINAING01