Selected works of S.L. Sobolev  
Sobolev, S. L. 
 - New York :  Springer,  2006 
 - v. <1> :  ill. ;  24 cm. 
<br/><br/> Collection of texts published previously. 
<br/><br/><label>ISBN: </label>9780387341484 (v. 1 : hbk.) | 038734148X (v. 1 : hbk.) | 0387341498 (e-book)