1. Hylleraas Centre for Quantum Molecular Sciences, Department of Chemistry, University of Oslo, 0315 Oslo, Norway
2. Department of Chemistry, Norwegian University of Science and Technology, 7491 Trondheim, Norway
3. Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, USA
4. Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
5. Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, USA
6. Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
7. Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
8. Department of Chemistry, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
9. Aarhus Institute of Advanced Studies, Aarhus University, DK-8000 Århus C, Denmark
10. Department of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany