Invited Speakers

 N. Andersson (Univ. of Southampton, U.K.) 
 I.  Antoniadis (CERN, Switzerland)
 D. Christodoulou (ETH Zurich, Switzerland)
 C. Chryssomalakos (UNAM, Mexico)
 A. Corichi (UNAM, Mexico)
 S.  Das (Univ. of Lethbridge, Canada)
 V. Frolov (Univ.of Alberta, Canada)
 J.  M. T. Louko (Univ. of Nottingham, U.K.)
 R. Maartens (Portsmouth Univ.,  U.K.)
 I.  Moss (Univ. of Newcastle-upon-Tyne, U.K.)
 J.  M. Pons (Univ. of Barcelona, Spain)
 M. Ryan (UNAM, Mexico)
 G. Schäfer (Friedrich-Schiller-Universitat Jena, Germany)
 D. Sudarsky (UNAM, Mexico)
 R. P. Woodard (Univ. of Florida, U.S.A.)
 J.  Zanelli (CECS, Chile)