Saveliev, Nikolai <br/><br/>
Lectures on the topology of 3-manifolds  : an introduction to the Casson invariant / 

 - Berlin:  Walter de Gruyter,  1999 
 - ix, 199p. Bibl. Index. 
 - De Gruyter textbook .
<br/><br/><label>ISBN: </label>3110162717 
<br/><br/><label>Dewey Class. No.: </label>514  / Sa266.LT