El-Shazly M. Duraia - Al-Farabi Kazakh National University
M. Burkitbaev - Al-Farabi Kazakh National University
H. Mohamedbakr - Al-Farabi Kazakh National University
Z. Mansurov
S. Tokmolden - Institute of Physics and Technology, 11 Ibragimov Street, 050032 Almaty, Kazakhstan
Gary W. Beall - Texas State University