by Mahar Gohar A., Alamri N., Aburizaiza O.S.
by Hendrych Jiří, Kubal, Ederová, Mašín
by G. Dimitriou, Papadopoulou Maria P.
by Grigoriadis Nikolaos, Spyroglou, Grigoriadis, Klapanis
by Sánchez Ormeño M., Hervás S., Amorós J.A., Campos J., Pérez-de-los-Reyes C.
by Sapountzis Marios, Stathis
by C.K.O. Silva, L.G. Aguiar, M.F. Ciriaco, M.M.G.R. Vianna, C.A.O. Nascimento, O. Chiavone-Filho, C.G. Pereira, E.L. Foletto
by G.D. Gikas, Tsihrintzis Vassilios
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.
by Servadio P., Bergonzoli Simone, Toderi M.
by Kaffas Konstantinos, Hrissanthou
by O.N. Omaka, F.I. Nwabue, E.J. Itumoh, E.C. Oroke, D.O. Igwe
by Iatrou Miltiadis, A. Papadopoulos, F. Papadopoulos, Tziachris P., Metaxa I.
by Pitsaki K., Boura F., Pantazidou Marina, Katsiri A.