1. Dynamical Spectroscopy, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching bei Munich, Germany
2. Digital Environment Research Institute, Queen Mary University of London, London E1 4NS, U.K.
3. Department of Physics, Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic
4. Biology Centre, Institute of Plant Molecular Biology, Czech Academy of Sciences, Branišovská 1160/31, 370 05 České Budějovice, Czech Republic