I would like to thank all my collaborators on this topic, Alain Coc, Pierre Descouvemont, Sylvia Ekström, George Ellis, Georges Meynet, Nelson Nunes, Keith Olive and Elisabeth Vangioni as well as Bénédicte Leclercq and Roland Lehoucq.
I also thank many colleagues for sharing their thoughts on the subject with me, first at the Institut d’Astrophysique de Paris, Luc Blanchet, Michel Cassé, Gilles Esposito-Farèse, Bernard Fort, Guillaume Faye, Jean-Pierre Lasota, Yannick Mellier, Patrick Petitjean; in France, Francis Bernardeau, Sébastien Bize, Françoise Combes, Thibault Damour, Nathalie Deruelle, Christophe Salomon, Carlo Schimd, Peter Wolfe; and to finish worldwide, John Barrow, Thomas Dent, Victor Flambaum, Bala Iyer, Lev Kofman, Paolo Molaro, David Mota, Michael Murphy, Jeff Murugan, Cyril Pitrou, Anan Srianand, Gabriele Veneziano, John Webb, Amanda Weltman, Christof Wetterich. To finish, I thank Clifford Will for motivating me to write this review.
This work was supported by a PEPS-PTI grant from CNRS (2009 – 2011) and the PNCG (2010) but, despite all our efforts, has not been supported by the French-ANR.
Living Rev. Relativity 14, (2011), 2
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