 | Omid Sameie , University of California Riverside, Riverside, California, Dec. 23, 2018 |
 | Kazem Azizi , Dogus University, Istanbul, Turkey, Dec. 13-24, 2018 |
 | Areg Mickaelian , NAS RA V. Ambartsumian Byurakan Astrophysical Observatory (BAO), Armenia, Byurakan, Armenia, Nov. 28, 2018 |
 | Tayeb Jamali , IPM, School of Physics, Tehran, Iran, Sep. 23 - Dec. 21, 2018 |
 | Yashar Akrami , Lorentz Institute for Theoretical Physics, Leiden University, , Netherlands, Sep. 12 - Oct. 12, 2018 |
 | Marius Oltean , Campus Universitat AutoÌ?noma de Barcelona, Bellaterra, Spain, Aug. 20, 2018 |
 | Marius Oltean , Institute of Space Sciences (ICE, CSIC), Campus Universitat Autonoma de Barcelona, Barcelona, Spain, Aug. 20, 2018 |
 | Mahmoud Safari , University of Bologna , , Italy, July 23 - Oct. 22, 2018 |
 | Reza Goldouzian , Interuniversity Institute for High Energies (IIHE), , Belgium, July 21-25, 2018 |
 | Razieh Emami , IAS at Hong Kong U. Sci. Tech, Hong Kong , China, July 21, 2018 |
 | Hadi Rahmani , Paris Observatory, Paris, France, May 13, 2018 |
 | Hadi Rahmani , Paris Observatory, Paris, France, May 13, 2018 |
 | Nasim Bozorgnia , IPPP, Durham University, Durham, UK, March 21 - April 20, 2018 |
 | Daniel Grumiller , Technical University of Vienna, Vienna, Austria, Feb. 19-27, 2018 |
 | Arman Esmaili , Pontifcia Universidade Catlica do Rio de Janeiro, Rio de Janeiro, Brazil, Feb. 11-25, 2018 |
 | Allahverdyan Armen , Yerevan Physics Institute, Armenia, Yerevan, Armenia, Jan. 9-16, 2018 |
 | Seyed Amir Bahrani , University of pParis Diderot, Paris, France, Dec. 27, 2017 - Jan. 10, 2018 |
 | Hossein Nili , IPM, School of Physics, Tehran, Iran, Sep. 23, 2017 - March 20, 2018 |
 | Kazem Azizi , Dogus University, Istanbul, Turkey, Aug. 23, 2017 - Sep. 22, 2018 |
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