| N. Guerassimov | Bulgarian Academy of Sciences, Sofia, Bulgaria |
| M. Dimitrova | Czech Academy of Sciences, Prague, Czech Republic |
| R. Panek | Czech Academy of Sciences, Prague, Czech Republic |
| Th. Czerwiec | Institut Jean Lamour (IJL), Ecole des Mines de Nancy, Nancy, France |
| W. Moller | Forschungszentrum Dresden-Rossendorf, Dresden, Germany |
| B. Rauschenbach | IOM and Leipzig University, Leipzig, Germany |
| H. Kersten | IEAP University of Kiel, Kiel, Germany |
| D. Mataras | University of Patras, Patras, Greece |
| V. Guerra | Instituto Superior Tecnico, Lisboa, Portugal |
| G. Dinescu | National Institute for Laser, Plasma and Radiation Physics, Magurele Bucharest, Romania |
| Z. Petrovic | Institute of Physics, Belgrade, Serbia |
| M. Mozetic | "Jozef Stefan" Institute, Ljubljana, Slovenia |
| K. Larsson | Uppsala University, Uppsala, Sweden |
| I. Katardjiev | Uppsala University, Uppsala, Sweden |
| M.C.M. (Richard) van de Sanden | Dutch Institute for Fundamental Energy Research (DIFFER), Eindhoven, The Netherlands |
| G. J. van Rooij | Dutch Institute for Fundamental Energy Research (DIFFER), Eindhoven, The Netherlands |
| M. Urgen | Istanbul Technical University, Istanbul, Turkey |
| A. Ehiasarian | Sheffield Hallam University, Sheffield, UK |
| I. Petrov | University of Illinois, Urbana, IL, USA |
