The Givaro group is composed of the following authors: Brice Boyer Alexis Breust Jean-Guillaume Dumas Thierry Gautier Pascal Giorgi Bruno Grenet Romain Lebreton Clément Pernet Jean-Louis Roch Bastien Vialla Gilles Villard and contributors: Cyril Bouvier Charles Bouillaguet Vincent Danjean Vincent Neiger David Saunders Douglas Torrance