Polya, G. <br/><br/>
Isoperimetric inequalities in mathematical physics  / 

 - New Jersey:  Princeton University Press,  1951 
 - xvi, 279p. Bibl. 
 - Annals of Mathematics studies ; 27 .
<br/><br/> "Reprinted by Kraus reprint corporation, N. Y., 1965". 
<br/><br/><label>Dewey Class. No.: </label>515.26  / P781.II