Perron, Oskar <br/><br/>
Irrationalzahlen 
Oskar Perron 
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 - Chelsea Publishing Co., New York   
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 - .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory-- Algebra-- Mathematics
<br/><br/><label>Dewey Class. No.: </label>512.7  PER-I;1