N.Q. Shikhaliyev, A.M. Qajar, G.T. Atakishiyeva, G.V. Babayeva, A.A. Niyazova, S.H. Mukhtarova, V.N. Krustalev, M. Akkurt and A.M. Maharramov
H.T. Aung, A.V. Kolesnikov, Yu.M. Averina, V.V. Chelnokov and F.M. Chyragov
UNEC Journal of Engineering and Applied Sciences