Encyclopaedia of Mathematical Sciences <br/><br/>
Partial differential equations VI  elliptic parabolic operators 
Ed. by Yu. V. Egorov and M. V. Shubin 
 - Berlin  Springer-Verlag  1994 
 - 325p. Bibl. Index. 
 - Encyclopaedia of Mathematical Sciences   V. 63 .
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<br/><br/><label>ISBN: </label>3540546782 
<br/><br/><label>Dewey Class. No.: </label>510.3  / En56.63