1. Institute of Chemistry – Inorganic Chemistry, University of Graz, Schubertstraße 1/III, 8010 Graz, Austria
2. Institute of Chemistry – Medicinal Chemistry, University of Graz, Schubertstraße 1/IV, 8010 Graz, Austria
3. Research & Development, Pharmaceuticals Laboratory, Bayer AG, 13342 Berlin, Germany