- 23rd Meeting, 1980
- 27th Meeting, 1984: Number Symbolism in the Central Asian Manichaean Texts
- 34th Meeting, 1991: Title of presentation: “The concept of sovereignty in the Manichean Central Asian texts”; title of contribution to Proceedings: Manichaean Religion and the Concept of Sovereignty among the Uighurs
- 38th Meeting, 1995: Saviour and Healer in the Old Uighur Religious Documents
- 41st Meeting, 1998:
- 43rd Meeting, 2000: Co-editor of Proceedings.