person:    Ipke Wachsmuth
address:   CITEC / Faculty of Technology
address:   Bielefeld University
address:   Inspiration 1
address:   D-33619 Bielefeld
address:   Germany
e-mail:    ipke.wachsmuth@uni-bielefeld.de
homepage:  www.techfak.uni-bielefeld.de/~ipke