The HARPS search for southern extra-solar planets - XXXIII. Super-Earths around the M-dwarf neighbors Gl 433 and Gl 667C
X. Delfosse, X. Bonfils, T. Forveille, S. Udry, M. Mayor, F. Bouchy, M. Gillon, C. Lovis, V. Neves, F. Pepe, C. Perrier, D. Queloz, N. C. Santos and D. Ségransan
