Address:

Prof. Dr. Holk Cruse

Department of Biological Cybernetics

Faculty of Biology University of Bielefeld

PO Box 10 01 31

D-33501 Bielefeld

Phone: . . . +49-521-106-5533

Fax: . . . . . +49-521-106-89010

e-mail: . . . Holk.Cruse@Uni-Bielefeld.De