Powers David L <br/><br/>
Boundary value problems 

 - 2 
 -  1972 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>22843 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Partial differential equations
<br/><br/><label>Dewey Class. No.: </label>B334, L21-;1