by Mahar Gohar A., Alamri N., Aburizaiza O.S.

by M. Umar, Waseem Amir, A.M. Kassi, M. Farooq, M.A. Sabir, Faridullah

by Papanastasiou D.K., Avgoloupis S., Melas D., Ikonomidis S.

by Cheristanidis Stavros, Batsos Ioannis, Chaloulakou Angeliki

by Gaidajis George, Angelakoglou Konstantinos

by Apaydın Ömer

by Marmanis D., Christoforidis A., Ouzounis K., Dermentzis K.

by Stergiopoulos D., Dermentzis K., Giannakoudakis P., Sotiropoulos S.

by Demirci Y.

by C. Couto, I. Pinto, T. Madureira, M.J. Rocha, M.E. Tiritan, J.A. Lopes, Almeida Agostinho A.

by O.N. Omaka, F.I. Nwabue, E.J. Itumoh, E.C. Oroke, D.O. Igwe

by Manariotis I.D., Yannopoulos P.C.

by Iatrou Miltiadis, A. Papadopoulos, F. Papadopoulos, Tziachris P., Metaxa I.

by Pitsaki K., Boura F., Pantazidou Marina, Katsiri A.