by Guan Xinjian, Wang Huiliang, Li Xuyong

by K. P. Silveira, H. L. Ornaghi Jr, P. R. Wander, G. A. Carvalho, M. Giovanela, K. R. Reckzegiel, J. S. Crespo

by Genç Nevim, Genç

by Çakıt Erman, E. Çakıt

by S. Sfaelou, J. Vakros, I.D. Manariotis, H.K. Karapanagioti

by E. Guler, G. Onkal Engin, M. Celen, H. Sari Erkan

by Üstün Abdullah Korkut, Üstün A.

by Darivianakis N., Katsifarakis K.L., Vafeiadis M.

by Panagopoulos Andreas, Arampatzis Georgios, Kuhr Petra, Kunkel Ralph, Tziritis Evangelos, Wendland Frank

by Mandaraka M., Makrinou K., Assimacopoulos D.

by Lekkas D. F., Onof C., Lees M. J., Baltas E. A.

by CERÓN R.M., MURIEL M., CERÓN J.G.

by Pehlivanoglou K.G., Papathanasoglou A.

by Dermatas D., Dadachov M., Dutko P., Menounou N., Arienti P., Shen G.

by Tsilingiridis George, Martinopoulos George, Kyriakis N.