| Hassan Ali Shah , Government College University, Physics Department, Lahore, Pakistan, Aug. 18 - Sep. 5, 2004 |
| Galileo Violini , Dipto Fisica Universita Della Calabria, Rende(Consenza), Italy, Aug. 16-26, 2004 |
| Roman Popovych , Institute of Mathematics, NAS of Ukraine, Kiev, Ukraine, April 26 - May 24, 2004 |
| Nodar Tsintsadze , Institute of Physics, Academy of Sciences of Georgia, Tbilisi, Georgia, April 24 - June 25, 2004 |
| Karl Landsteiner , LFT / Universidad Autonoma, Madrid, Spain , Jan. 18 - Feb. 1, 2004 |
| Shahin Mamedov , Baku State University, Baku, Azerbaijan Republic, Sep. 1, 2003 - May 30, 2004 |
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