Wloka, J.T., et al <br/><br/>
Boundary value problems for elliptic systems 
J.T. Wloka, et al 
 - Cambridge  Cambridge University Press  1995 
 - xiv  641 
<br/><br/><label>ISBN: </label>9780521430111 
<br/><br/><label>Dewey Class. No.: </label>10.03+10.10+10.07  / WLOK