Dynamical masses of early-type galaxies at z ∼ 2: Are they truly superdense? by Cappellari, M, Di Serego Alighieri, S, Cimatti, A, Daddi, E, Renzini, A, Kurk, J, Cassata, P, Dickinson, M, Franceschini, A, Mignoli, M, Pozzetti, L, Rodighiero, G, Rosati, P, Zamorani, G