Bergman, S. <br/><br/>
Contributions to the theory of partial differential equations 
S. Bergman…[et al.]                                                  
 - Princeton  Princeton University Press  1954 
 - v, 257p. 
 - Annals of Mathematics Studies no.33 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NASA Thesaurus<br/>Partial Differential Equations
<br/><br/><label>Universal Decimal Class. No.: </label>517.95  / BER