Levinson, Norman <br/><br/>
Gap and density theorems /  
Norman Levinson. 
 - New York :   American Mathematical Society,   1940 
 - viii, 246 p.  
 - American Mathematical Society Colloquium Publications.   vol. 26. .
<br/><br/><label>Subjects--Topical Terms: </label>--SERIES DE FOURIER--ECUACIONES INTEGRALES--VARIABLES COMPLEJAS
<br/><br/><label>Universal Decimal Class. No.: </label>517.5