00291nam a2200109Ia 4500008004100000040003800041100002200079245001400101260003700115300001300152653001600165211217s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aAlexandroff, Paul 0aTopologie  bCHELSEA PUB. CO.aNEW YORKc1935  a613 p p.  aMATHEMATICS