Sommerfeld, Arnold <br/><br/>
Partial differential equation in physics; lectures on the theoretical physics; v. 6  / 

 - New York:  Academic Press,  1967 
 - xi, 335p. Index 
 - Pure and Applied Mathematics   v. 1 .
<br/><br/> "Lectures on Theoretical Physics, v. 6". "Translated by Ernst G. Straus". 
<br/><br/><label>Dewey Class. No.: </label>515.35  / So697.PD