Probing the Canis Major stellar over-density as due to the Galactic warpY. Momany, S. R. Zaggia, P. Bonifacio, G. Piotto, F. De Angeli, L. R. Bedin and G. CarraroA&A, 421 2 (2004) L29-L32DOI: https://doi.org/10.1051/0004-6361:20040183