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by Abdulla Abdelkader, S. Ouki
by Karavitis Christos A., Skondras N.
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by Kourgialas N.N., Karatzas G.P., Morianou
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by Maran Sardar, Ponnusamy P., Venkatesan R., Singh A.B.
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by Kaushik Garima, Sharma K.
by Hazra Tumpa, Goel S., Maitra B.
by Mahar Gohar A., Alamri N., Aburizaiza O.S.
by Valaouris A., Poulos Serafim, Petrakis S., Alexandrakis G., Vassilakis E., Ghionis G.
by Samara T., Tsitsoni T.
by M. Shao, P. Tao, Song Chengwen, S. Wu, M. Cheng
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by M. T. Amin, S. Hamid, A. A. Alazba, M. N. Amin, M. Islam, U. Manzoor
by Ortega M.F., Rincones M., Elío J., Gutiérrez del Olmo J., Nisi B., Mazadiego L.F., Iglesias L., Vaselli O., Grandia F., García R., De La Vega R., Llamas B.
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by H. Hurdowar-Castro, Tsanis I.K.
by Petrakis Spyridon, Alexandrakis George, Poulos Stavros