Coordinator: Thibault Damour
Speakers:
I. Antoniadis (CERN, Geneva, Switzerland)
T. Damour (IHES, Bures-sur-Yvette, France)
M. Kramer (University of Manchester, UK)
J. Mester (Stanford University, USA)
J.-Y. Vinet (OCA, Nice, France)
A booklet collecting the talks will be distributed
