Born 1959, research position at university of Graz since 1983. Research stay at the Kiepenheuer Institute fA1/4r Sonnenphysik, Insituto de Astroficia de Canarias, Tatranska Lomnica and others. 3 times guest professor at the Universite de Toulouse, Obs. Pic du Midi, France. Since 2005 full time professor at University of Graz. Since 2002 president of JOSO, Joint Organisation for Solar Observations.