Courant, Richard, Hilbert, David (university Of K¿nigsberg (2) Velten, Kai (rheinmain University Of Applied Sciences, Schmidt, Dominik M. (college Geisenheim University; University Of Giessen, Kahlen, Katrin (college Geisenheim University (1) Kusse, Bruce R. (cornell University), Westwig, Erik A. (palisade Corporation (1) Jungel, Ansgar, Zachmann, Hans Gerhard (inst.f.anorg.chemie Der Uni Hamburg (1) Steffens, Hans-jurgen, Zollner, Christian, Schafer, Kathrin (1)