Author: David G. Gadian, S. R. Williams, T. E. Bates, R. A. Kauppinen (auth.), Professor Dr. Alexander Baethmann, Professor Dr. Oliver Kempski, Dr. Ludwig Schürer (eds.)
Author: K. Black, M. Green, T. Healy, R. Bell, J. Oldman, T. Hume (auth.), Professor Dr. Jan Harff, Dr. Wolfram Lemke, Professor Dr. Karl Stattegger (eds.)