New advances in ultra–stable microwave oscillators V. Giordano, P. Y. Bourgeois, Y. Gruson, N. Boubekeur, R. Boudot, E. Rubiola, N. Bazin and Y. Kersalé Eur. Phys. J. Appl. Phys., 32 2 (2005) 133-141 Published online: 26 October 2005 DOI: 10.1051/epjap:2005078