Ricki Lewis ... [et al.] Ricki Lewis ... [et al.]. Roy J. Lewicki ... [et al. Roy J. Lewicki ... [et al.]. Rich Heimlich ... [et al.]. Roy J. Lewicki...[ et al.]. Robert Kegan ... [et al. Ron Ashkenas ... [et al. Michiel R. Leenders ... [et al. Neville Harris ... [et al.