1994/95 | Universität Ulm (one semester) |
1995 | Ohio University, Athens, Ohio (one quarter) |
1998 | Ohio University, Athens, Ohio (two quarters) |
2000/01 | Indiana University, Bloomington, Indiana (one year) |
2001 | Université de Poitiers (one month) |
2003 | Université de Metz (one month) |
2004 | Université d'Artois, Lens (one semester) |
2004/05 | Universitat Politècnica de València (three months) |
2006 | Indiana University, Bloomington, Indiana (one semester) |
2007 | Université de Metz (one month) |
2007 | Technische Universität Berlin (nine months) |