Qinghua Du <br/><br/>
Boundary elements. 
Qinghua Du 
 -  1986 
<br/><br/><label>Standard No.: </label>22052 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B78:2p1,N86, M6