Christensen, J P R <br/><br/>
Topology and borel structure 

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 - Amsterdam  North-Holland Publishing Company  1974 
 - 133 p.   
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<br/><br/><label>Subjects--Index Terms: </label>borel structures  Topology  Set theory  Mathematics  Number theory  Set theory  Group theory  Mathematical sciences 
<br/><br/><label>Dewey Class. No.: </label>515.1