Geometries and groups :  proceedings of a colloquium held at the Freie Universitat, Berlin, May 1981 / 
edited by M. Aigner and D. Jungnickel. 
 - Berlin :  Springer-Verlag,  1981 
 - 250 p. :  ill. ;  25 cm. 
 - Lecture notes in mathematics ;  893 .
<br/><br/><label>LCCN: </label>81-21358 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry--Congresses<br/>Groups, Theory of--Congresses<br/>Combinatorial analysis--Congresses