TY  - BOOK
AU  - Colloquium on Geometries and Groups, Berlin, May 1981
AU  - Aigner, Martin
AU  - Jungnickel, D.
TI  - Geometries and groups: ; proceedings 
U1  - 516 
PY  - 1981///
CY  - Berlin
PB  - Springer-Verlag
ER  -