Participation:
- 29th Meeting, 1986: “Zum Stand der Erforschung der uigurischen Dokumente” (in: Türk Dili Araştırmaları Yıllığı Belleten 1987, Ankara 1992, 257–263)
- 31st Meeting, 1988: Einige Bemerkungen zu Steuern, Abgaben und DIenstpflicht im uighurischen Königreich von Qočo (In: Altorientalische Forschungen 19 (1992), 155–159)
- 33rd Meeting, 1990
- 34th Meeting, 1991
- 49th Meeting, 2006
- 53rd Meeting, 2010: The Pre-eminent sūtra. New Traces of the Altun Yaruk Sudur
- 55th Meeting, 2012: “Some Remarks Concerning Hierarchy and Status as Seen in the Old Uyghur Documents from the Turfan Region“
- 56th Meeting, 2013: “Expressions of Gender and the Rôle of Woman as attested in Old Uigur Documents”
