The 8th International conference on solid films and surfaces (Invited talk), 1996-07-01
HASYLAB Users Seminar (Invited Talk), 1996-06-01
The International conference on surface science : Critical review and outlook (Invited Talk), 1995-06-01
UVSOR Users' Seminar (Invited Talk), 1995-06-01
Brown University Physics Seminar (Invited Talk), 1994-05-01
AT&T Bell Labs Physics Seminar (Invited Talk), 1994-05-01
ISSP Seminar, 1992-09-01
IEEE and Lasers and Electro-Optics Soc, 1990-10-01
The American, page. 1534 - 1535, 1990-10-01