B.A. Dubrovin A.T. Fomenko  <br/><br/>
Modern Geometry-Methods and Applications 

 - New York   Springer-Verlag  1985 
 - Xv,430 
<br/><br/><label>ISBN: </label>978-81-8489-659-6 
<br/><br/><label>Dewey Class. No.: </label>516  / DUB