| Marc Moniez , Laboratoire de l'Accelerateur Lineaire , Paris, France, Dec. 16-29, 2006 |
| Bengt Eliasson , Theoretical Physics IV Ruhr-University Bochum , Bochum, Germany, Dec. 11-17, 2006 |
| Arif Akhundov , University of Valencia, Valencia, Spain, Nov. 23 - Dec. 21, 2006 |
| Marc Moniez , Laboratoire de l'Accelerateur Lineaire , Paris, France, Oct. 5-20, 2006 |
| S. M. Bhatwadekar , Tata Institute of Fundamental Research, Mumbai, India, Sep. 1-22, 2006 |
| Hassan Firouzjahi , Laboratory for Elementary-Particle Physics, Cornell University, Ithaco, USA, Aug. 11-18, 2006 |
| M. Khalkhali , University of Western Ontario, Ontario, Canada, Aug. 6 - Sep. 3, 2006 |
| Dariush Ehsani , Pennsylvania State University, , USA, July 6 - Aug. 30, 2006 |
| Mahdi Asgari , Oklahoma State University, Stillwater, USA, June 26 - Aug. 3, 2006 |
| Michel Jambu , University of Nice and CIMPA, Nice, France, May 24 - June 2, 2006 |
| Zafar Turakulov , Institute of Nuclear Physics, , Uzbekistan, May 22 - June 12, 2006 |
| Gilles Carron , University of Nantes, Nantes, France, May 20-26, 2006 |
| Bruno Colbois , University of Neuchâtel, Neuchâtel, Switzerland, May 20-26, 2006 |
| Ahmad El Soufi , University of Tours, Tours, France, May 20 - June 2, 2006 |
| Frank Pacard , University of Paris XII, Paris, France, May 20 - June 1, 2006 |
| Thierry Coulhon , University of Cergy-Pontoise, Cergy-Pontoise , France, May 20-27, 2006 |
| Qing Xiang , University of Delaware, Delaware, USA, April 22 - May 1, 2006 |
| Patric Ostergard , Helsinki University of Technology, , Finland, April 22-27, 2006 |
| Jeff Dinitz , University of Vermont, Vermont, USA, April 22 - May 1, 2006 |
| Samad Hedayat , University of Illinois at Chicago, Chicago, USA, April 21 - May 4, 2006 |
| Aart Blokhuis , Eindhoven University of Technology, Eindhoven, The Netherlands, April 21-30, 2006 |
| Willem H. Haemers , Tilburg University, Tilburg, The Netherlands, April 21 - May 11, 2006 |
| Brendan McKay , Australian National University , Canberra, Australia, April 20-30, 2006 |
| Tanay Kumar Dey , Institute of Physics, Bhubaneswar, India, , India, April 20 - May 1, 2006 |
| Hadi Kharaghani , University of Lethbridge, Lethbridge, Canada, April 20 - May 20, 2006 |
| Richard Wilson , California Institute of Technology, , USA, April 20 - May 5, 2006 |
| Andries E. Brouwer , Eindhoven University of Technology, Eindhoven, The Netherlands, April 9-30, 2006 |
| Elena Konstantinova , Sobolev Institute of Mathematics, Novosibirsk, Russia, April 5 - May 1, 2006 |
| Marc Moniez , Laboratoire de l'Accelerateur Lineaire, Paris, France, Dec. 29, 2005 - Jan. 15, 2006 |
| Hong Wee Tan , University of Toronto, Toronto, Canada, Dec. 15, 2005 - Jan. 12, 2006 |
| Jessica Paola Mondia , University Erlangen-Nuremberg, Erlangen, Germany, Dec. 15, 2005 - Jan. 12, 2006 |
| Fatemeh Ghasemi , Sharif University of Technology, Tehran, Iran, Sep. 23, 2005 - March 20, 2006 |
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