2010 Géodésie planétaire
Pätzold M., T.P. Andert, B. Häusler, S. Tellmann, J.D. Anderson, S.W. Asmar, J.-P. Barriot, and M.K. Bird , Pre-flyby estimates of the precision of the mass determination of asteroid (21) Lutetia from Rosetta radio tracking, Astronomy & Astrophysics, June 29, 2010.