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2016: Awarded with the degree of Doctor honoris causa by the Daugavpils University (Latvia)
2016–22: Director of Research on the Didactics of the Arts, The Schwyz University of Teacher Education
2010–2019: Visiting Lecturer at the University of Daugavpils in Latvia
2007–2015: Visiting Lecturer at Tallinn University (Estonia)
1999–2012: Invited lectures and courses: Bern, Frankfurt, Karlsruhe, Jyväskylä, Oulu, Tallinn, Budapest, Daugavpils
2001: Habilitation, University of Zurich
2001/02: Invited professor: University of Braunschweig
1999: Invited professor: University of Karlsruhe
1990–1991: San Diego, California, USA
1988: Dissertation, University of Bern
1983–1987: research assistant, fellowship, University of Darmstadt
1982: Lizenziat, University of Fribourg, Switzerland
1977: Diploma as a teacher at primary schools