By Peter Baccini, Paul H. Brunner (Vienna University of Technology)
By Marc L Miller, Richard P Gale
By Peter Haas
By Jean-David Gerber, Thomas Hartmann, Andreas Hengstermann
By Ilse Koehler-Rollefson, Fred Provenza
By Peter Ambrose
By Derek Armitage, Fikret Berkes, Nancy Doubleday
By Martin Wynn
By Chris Goodall
By Michael Mortimore
By Gerald Foley, etc.
By F. Coenen, D. Huitema, Laurence J. O'Toole Jr.
By Dr Oliver Rackham
By Bryan G. Norton (Bryan G. Norton)