Encyclopaedia of Mathematical Sciences <br/><br/>
Partial differential equations IX  elliptic boundary value problems 
Ed. by M. S. Agranovich, Yu V. Egorov and M. A. Shubin 
 - Berlin  Springer-Verlag  1997 
 - 281p. Bibl. Index. 
 - Encyclopaedia of Mathematical Sciences   V. 79 .
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<br/><br/><label>ISBN: </label>3540570446 
<br/><br/><label>Dewey Class. No.: </label>510.3  / En56.79