Conferences and Meetings:

Beyin Konferansı, 2005.

Internet Konferansı. 2005.

İnternet, Dijital Kültür ve Eğitim Konferansı, 2005.

Akademik Bilişim Konferansı, 2005.

Computer Society of India, Indian Institute for Computing Systems, Bangalore.

The International Symposium on Visual Languages 1993, 1994, 1995, 1996;

International Workshop on the Theory of Visual Languages 1996;

Advanced Visual Interfaces 1996;

Workshop on Abstract Data Types 1995;

Joint Conferences European Symposium on Programming / International Conference on Compiler Construction/ Colloquium on Trees in Algebra and Programming 1994.

Algebraic Methodology and System Technology 1993;

European Conference on Object-Oriented Programming and Conference on Object-Oriented Programming Systems, Languages, and Applications 1990;

Midwest Society for Programming Languages and Systems fall 1989, 1990 and spring 1990, 1991.