Master of Science in Chemistry, University Aarhus, Denmark, 1981. Doctor of Philosophy in Chemistry, University Aarhus, Denmark, 1983. Doctor habilitatus, Justus-Liebig-University, Giessen, Germany, 1992.
Scientific assistant Justus-Liebig University, 1990—1994. Professor University Wuppertal, Germany, since 1994. Chairman International Conference High Resolution Molecular Spectroscopy, Prague, Czech Republic, 1994—2006.
Member of Bunsen-Gesellschaft, Danish Chemical Society, American Physical Society.