Milky Way demographics with the VVV survey - I. The 84-million star colour–magnitude diagram of the Galactic bulge
R. K. Saito, D. Minniti, B. Dias, M. Hempel, M. Rejkuba, J. Alonso-García, B. Barbuy, M. Catelan, J. P. Emerson, O. A. Gonzalez, P. W. Lucas and M. Zoccali
