Internal Conversion vs. Intersystem Crossing – What Drives the Dynamics of Cyclic α,β-Enones? O. Schalk, P. Lang, M. S. Schuurman, G. Wu, M. Bradler, E. Riedle and A. Stolow EPJ Web of Conferences, 41 (2013) 05029 Published online: 13 March 2013 DOI: 10.1051/epjconf/20134105029