- Claus Anders
- special thanks
- Andreas Bahrdt
- special thanks: ACA, Berlin
- Peter Baumann
- special thanks: Private Music, New York
- Alfred Haupts
- special thanks
- Thomas Hülsmann
- special thanks: PIK, Berlin
- Johann Makowsky
- special thanks: Technion, Israel Institute of Technology, Haifa (as J.A. Makowsky)
- Dieter Podhajecky
- special thanks: GEI Systems, Aachen