Rate and nature of false positives in the CoRoT exoplanet search - Almenara, J; Deeg, H; Aigrain, S; Alonso, R; Auvergne, M; Baglin, A; Barbieri, M; Barge, P; Borde, P; Bouchy, F; Bruntt, H; Cabrera, J; et al. (2009)