Bernard Boch ...[et al.] Bernhard Pellens ... [et al. Barry Boehm ... [et al. Joern Helbert ... [et al. Richard C. Holt ... et al. Ferdinand P. Beer ... [et al. Henry Emmons ... [et al. Joachim Buscha ...et al. John F. Nash ... [et al. Jerald E.Pinto ... [et al.