by Papadonikolaki G.S., Altan Y.C., Stamou A.I., Otay E.N., Christodoulou G.C., Copty N.K., Tsoukala V.K., Telli-Karakoc F., Papadopoulos A.
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by M. T. Amin, S. Hamid, A. A. Alazba, M. N. Amin, M. Islam, U. Manzoor
by C. Couto, I. Pinto, T. Madureira, M.J. Rocha, M.E. Tiritan, J.A. Lopes, Almeida Agostinho A.
by H. Hurdowar-Castro, Tsanis I.K.
by Catsiki V., Hatzianestis I., Rigas F.
by Al-Tawabini Bassam
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