Gunter Erhard,
E. Alfredo Campo,
Natti S. Rao, Nick R. Schott,
José R. Lerma Valero,
Edited by: Norbert Niessner,
Susan E.M. Selke, John D. Culter, Rafael A. Auras, Muhammad Rabnawaz,
Günter Etzrodt,
Herbert Rees,
Edited by: E.H. Immergut,
Ulf Bruder,
Christian Bonten,
Edited by: Jürgen Troitzsch, Edith Antonatus,
Anthony Chi-Ying Wong,