1. Interdisciplinary
Center for Scientific Computing, Ruprecht-Karls University, Im Neuenheimer
Feld 205, 69120 Heidelberg, Germany
2. Max-Planck-Institut für Kohlenforschung, 45470 Mülheim an der Ruhr, Germany
3. Department
of Chemistry and The PULSE Institute, Stanford University, Stanford, California 94305, United States
4. SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States