 | Anri Rukhadze , Moscow National University, Moscow, Russia,
Dec. 13-20, 1998 |
 | E. Mendelsohn , University of Toronto, Toronto, Canada,
Nov. 23 - Dec. 23, 1998 |
| Heinrich Hora , New South Wales University, , Australia,
Nov. 5-15, 1998 |
| W. Ruitenburg , Marquette University, Wisconsin, USA,
Oct. 17 - Nov. 11, 1998 |
| A. Edalat , Imperial College London, London, UK,
Oct. 15 - Nov. 14, 1998 |
| J.P. Tignol , Universite Catholique de Louvain, , Belgium,
Aug. 25 - Sep. 2, 1998 |
| U. Rehman , Universitat Bielefld, Bielefld, Germany,
Aug. 25 - Sep. 2, 1998 |
| H. Kiechle , Universitat Munich, Munich, Germany,
Aug. 25 - Sep. 2, 1998 |
| A. Barelli , Universite Paul Sabatier, , France,
Aug. 16-24, 1998 |
| J. Bellissard , Universite Paul Sabatier, , France,
Aug. 16-24, 1998 |
| Roya Mohayaee , Sao Paulo University, Sao Paulo, Brazil,
July 22 - Aug. 23, 1998 |
| Nodar Tsintsadze , Institute of Physics Academy of Sciences of Georgia, Tbilisi, Georgia,
July 1 - Nov. 12, 1998 |
| Sebastian Kuhn , Innsbruck University, Innsbruck, Austria,
Jan. 4 - Feb. 1, 1998 |
| A. Wassermann , University of Bayreuth, Bayreuth, Germany,
Dec. 22, 1997 - Jan. 3, 1998 |
| Elcio Abdalla , Sao Paulo University, Sao Paulo, Brazil,
Dec. 10, 1997 - Feb. 4, 1998 |
| L. Hadzievski , Institute of Nuclear Science, Vinca, Yogaslavya,
Nov. 24, 1997 - April 20, 1998 |
| Roya Mohayaee , Sao Paulo University, Sao Paulo, Brazil,
Nov. 22, 1997 - May 11, 1998 |
|
