Landau, Rubin H. (oregon State University, Paez, Manuel J. (university Of Antioquia, Bordeianu, Cristian C. (bucharest University (2) Otto, Matthias (tu Bergakademie Freiberg (1) Schwartz, Oliver (1) Kaltenbock, Karl (1) Nicolaou, K. C. (the Scripps Research Institute, Sorensen, E. J. (the Scripps Research Institute (1)