Author: M. Koch, G. von Plessen, T. Meier, J. Feldmann, S. W. Koch, P. Thomas, E. O. Göbel (auth.), Karl Hess, Jean-Pierre Leburton, Umberto Ravaioli (eds.)
Author: John H. Holland, Lashon B. Booker, Marco Colombetti, Marco Dorigo, David E. Goldberg (auth.), Pier Luca Lanzi, Wolfgang Stolzmann, Stewart W. Wilson (eds.)