| Xianlong Gao , Zhejiang Normal University , Jinhua, China, July 31 - Aug. 14, 2014 |
| Abhishek Chowdhury , Harish Chamdra Research Institute, Allahabad, India, June 8 - Aug. 8, 2014 |
| Malihe Ghodrat , IPM, School of Physics, Tehran, Iran, April 21 - June 21, 2014 |
| Philip Rupp , Free University of Berlin, Berlin, Germany, Jan. 17-31, 2014 |
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