| Ahmad Sheykhi , Shahid Bahonar U., Kerman, Iran, Oct. 26-27, 2010 |
| Ali Naji , University of Cambridge, , UK, July 23-30, 2010 |
| Marc Vonlanthen , University of Geneva, Switzerland, Geneva, Feb. 26 - March 4, 2010 |
| Harald Fritzsch , LMU Munich, Department of Physics, Munich, Germany, Jan. 31 - Feb. 6, 2010 |
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