Attended the 16th International Conference on the Physics of Electronic and Atomic Collisions (ICPEAC) in New York (USA) from 26 July - 1 August, 1989, and presented a research paper there.

Attended the 5th International Symposium on Polarization and Correlation in Electronic and Atomic Collisions in Hoboken, NJ, USA from August 2 - August 4, 1989.