First observation of the decay over(B, -)s 0 → D0 K* 0 and a measurement of the ratio of branching fractions frac(B (over(B, -)s 0 → D0 K* 0), B (over(B, -)0 → D0 ρ0)) - Aaij, R; Abellan Beteta, C; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Alkhazov, G; Alvarez Cartelle, P; et al. (2011)