Scientific assistant Phillips University, Marburg, 1969-1978, dozent, 1979-1988. Research associate Michigan State University, 1978-1979. Chair botany Friedrich-Alexander University, Erlangen, Germany, since 1988.
Director Institute Botany, Germany, since 1991.
- Photomovement, Volume 1 (Comprehensive Series in Photosciences)
- This volume emphasizes the involvement of all facets of biology in the analysis of environmentally controlled movement responses.
- Image Analysis in Biology
- Since its development in the 1970s, computerized image analysis has witnessed rapid growth and enormous progress.
1969 - 1978
1978 - 1979
1979 - 1988