Hans Stephani gained his Diploma, PhD and Habilitation at the Friedrich Schiller Universität Jena. He became Professor of Theoretical Physics in 1992, before retiring in
2000. He has been lecturing in theoretical physics since 1964 and has published numerous papers and articles on relativity and optics.
Dietrich Kramer is currently Professor of Theoretical Physics at the Friedrich Schiller Universität Jena. He graduated from this university, where he also finished his PhD (1966) and habilitation (1970). His current research concerns Classical Relativity. The majority of his publications are devoted to Exact Solutions in General Relativity.
Malcolm MacCallum is currently Professor of Applied Mathematics at the School of Mathematical Sciences, Queen Mary, University of London, where he is also Vice-Principal for Science and Engineering. He graduated from Kings College, Cambridge and went on to complete his M.A. and PhD there.
Cornelius Hoenselaers gained his Diploma at Technische Universität Karlsruhe, his DSc at Hiroshima Daigaku and his Habilitation at Ludwig-Maximilian Universität München. He is currently Reader in Relativity Theory at Loughborough University.
Eduard Herlt is currently wissenschaftlicher Mitarbeiter at the Theoretisch Physikalisches Institut der Friedrich Schiller Universität Jena. Having studied Physics as an undergraduate at Jena, he went on to complete his PhD there as well as his Habilitation. He has had numerous publications including one previous book.