Hansen, Vagn Lundsgaard <br/><br/>
Braids and Coverings: selected Topics 
Vagn Lundsgaard Hansen 
 - Cambridge  Cambridge University Press  1989 
 - X-191 p. : ill. ; 23 cm 
<br/><br/><label>ISBN: </label>9780521387576 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Braid theory<br/>Covering spaces (Topology)
<br/><br/><label>Dewey Class. No.: </label>514.224 HAN