DUBROVIN,B.A <br/><br/>
MODERN GEOMETRY METHODS AND APPLICATIONS 

 - NEW YORK  Springer  1990 
 - 24X16 
 - GRADUATE TEXTS IN MATHEMATICS .
<br/><br/><label>ISBN: </label>0387908722 
<br/><br/><label>Dewey Class. No.: </label>516 D819