 | V. Maillot , ENS, Paris, France,
Oct. 29 - Nov. 30, 1999 |
| H. Kharaghani , University of Lethbridge, Lethbridge, Canada,
Aug. 9-30, 1999 |
| S. Shahriari , Pomona College, Claremont, CA, USA,
June 14 - Aug. 1, 1999 |
| D. Van Dalen , Utrecht University, Utrecht, The Netherlands,
May 28 - June 5, 1999 |
| A. Edalat , Imperial College London, London, UK,
April 15 - May 15, 1999 |
 | Nodar Tsintsadze , Institute of Physics, Academy of Sciences of Georgia, Tbilisi, Georgia,
March 21 - Dec. 25, 1999 |
| David Tskhakaya , Institute of Physics, Academy of Sciences of Georgia, Tbilisi, Georgia,
March 21, 1998 - March 21, 1999 |
|
