Knopp, Konrad, 1882-1957.  Knopp, Konrad, 1882-1957. <br/><br/>
Problem book in the theory of functions. 

 - [1st American ed.]. 
 - New York,  Dover Publications  [1948-53; v. 2, c1952] 
<br/><br/>v. 1. Problems in the elementary theory of functions, translated by L. Bers.--v. 2. Problems in the advanced theory of functions, translated by F. Bagemihl. 
<br/><br/><label>LCCN: </label>49007400 //r902 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions.
<br/><br/><label>LC Class. No.: </label>QA331  / .K663 
<br/><br/><label>Dewey Class. No.: </label>517.5