Bergman, Stefan,  1898- <br/><br/>
Integral operators in the theory of linear partial differential equations / 
by Stefan Bergman. 
 - 2nd rev. 
 - New York :  Springer-Verlag,  1969. 
 - x, 145 p. ;  24 cm. 
 - Ergebnisse der mathematik und ihrer Grenzgebiete. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial<br/>Integral operators