N. 3 , September

A.N. Qadrouh, J.M. Carcione, M. Alajm i and M.M. Alyousif

C. Wu, J. Ba, L. Zhang and J.M. Carcione

M. Abid, M. Riaz, M. Shah, T. Zafar and A. Malik

Y. Zarei, A. Uromeihy, M. Reza Nikoodel and M. Fathollahy

P. Raykova, D. Solakov and S. Simeonova

W. Jarmolowski

M. Yilmaz

W. Zhang

C. Millot