Heinz Georg Schuster is Professor of Theoretical Physics at the University of Kiel in Germany. In 1971 he attained his doctorate and in 1976 he was appointed Professor at the University of Frankfurt am Main in Germany. He was a visiting professor at the Weizmann-Institute of Science in Israel and at the California Institute of Technology in Pasadena, USA.

Wolfram Just is Lecturer for Applied Mathematics at Queen Mary/University of London. He held positions at different institutions, for instance Kyushu University Fukuoka/Japan, MPIPKS Dresden/Germany, and Chemnitz University of Technology/Germany. His current research interests are nonlinear dynamics of systems with many degrees of freedom and nonequilibrium statistical physics.