Bernstein, Dorothy Lewis  1914- <br/><br/>
Existence theorems in partial differential equations / 
by Dorothy Lewis Bernstein. 
 - Princeton :  Princeton University Press ,  1950. 
 - vii, 228 p. ;  26 cm. 
 - Annals of mathematics studies ;  no. 23 .
<br/><br/> "Prepared for the Office of Naval Research by Engineering Research A ssociates, inc., under contract N6onr-240." 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial.<br/>Existence theorems.
<br/><br/><label>Dewey Class. No.: </label>517.38