3D-HST+CANDELS: THE EVOLUTION OF THE GALAXY SIZE-MASS DISTRIBUTION SINCE z=3 von van der Wel, A, Franx, M, van Dokkum, P, Skelton, R, Momcheva, I, Whitaker, K, Brammer, G, Bell, E, Rix, H, Wuyts, S, Ferguson, H, Holden, B, Barro, G, Koekemoer, A, Chang, Y, McGrath, E, Haeussler, B, Dekel, A, Behroozi, P, Fumagalli, M, Leja, J, Lundgren, B, Maseda, M, Nelson, E, Wake, D