Bernstein, Dorothy L. . <br/><br/>
Existence Theorems in Partial Differential Equations /  Textual Documents 
Dorothy L.Bernstein. 
 - 1st ed. / 
 - Princeton :  Princeton University Press ,  1950. 
 - 226p. :  ill ;  23cm . 
<br/><br/><label>Subjects--Index Terms: </label>Differential Equations G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>517.38  / B 458 Ex