He served as president and provost at the European Graduate School, based in Saas-Fee, Switzerland, and Valletta, Malta from October 2013 until June 2018.
In Paris he visited the lectures by Michel Foucault at the Collège de France and by Jacques Derrida at the École Normale Supérieure.
In 1995 he obtained a 5-year tenure at the Muthesius Hochschule for Art and Design in Kiel, where he founded the Center for Interdisciplinary Project Studies.
During this time, he was responsible for the Tangent series of exhibitions and accompanying publications, which brought "contemporary artists into dialogue with the CCA Collection and [resulted] in newly commissioned works.
He first became member of the editorial board of the Mannheim series of papers Mana-Analytika (Média Medusa) in 1987, a position he occupied until 1992.
In 1988 he became editor of the well-known German magazine on the history of photography Fotogeschichte, which is published in Marburg and Frankfurt am Main.
Since 1996, he is a member of the German editorial board of the French series of papers Esthétique, Editions l’Harmattan, a publication based in Paris.