 
      
      
	S. Abel (University of Durham)
	I. Antoniadis (Ecole Polytechnique)
	A. Dedes (Univ. of Ioannina)
	J.R. Ellis (CERN & King's College London)
	C. Kounnas (Ecole Normale Supérieure de Paris)
	N. Mavromatos (King's College London)
	D. Nanopoulos (Texas A&M University and Athens Academy)
	M. Quiros (Universitat Autonoma de Barcelona)
	S. Sarkar (University of Oxford & NBI Copenhagen)
	K. Tamvakis (Univ. of Ioannina)
      
      
	I. Bakas
	G. Diamandis
	V. Georgalas
	T.J. Mertzimekis
	K. Sfetsos
	V. Spanos
	K. Tamvakis
	N. Tetradis