Zieschang, Heiner <br/><br/>
Surface and planar discontinuons groups / 
Heiner Zieschang, Elmar Vogt, Hans-Dieter Coldewey 
 - rev. and expanded translation 
 - Berlin :  Springer-Verlag,  1980 
 - 334 p. :  ill. ;  24 cm. 
 - Lecture notes in mathematics  .835 .
<br/><br/> Translated from the German- Flachen und ebene diskontinuier-liche gruppen  by J.Stillwell 
<br/><br/>Includes indexes Bibliography : p. 311-329 
<br/><br/><label>ISBN: </label>3540100245 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discontinuous groups<br/>Combinatorial topology<br/>Surface