Shanghai Jiao Tong University, China
Ghent University, Belgium
State University of New York at Binghamton
University of Aveiro, Portugal
University of Macau, Macau, China
Gwangju Institute of Sci. and Tech., Korea
Uninersity of Science and Technology Beijing, China
Huazhong University of Science & Technology, China
Shihezi University, Xinjiang Uygur Autonomous Region, China
Ghent University, Belgium
Rice University, USA
Fluminense Federal University (UFF)
Babes-Bolyai University, Romania
University of Almeria, Spain
Dibrugarh University, India