Milky Way demographics with the VVV survey - III. Evidence for a great dark lane in the 157 million star bulge color–magnitude diagram
D. Minniti, R. K. Saito, O. A. Gonzalez, M. Zoccali, M. Rejkuba, J. Alonso-García, R. Benjamin, M. Catelan, I. Dékány, J. P. Emerson, M. Hempel, P. W. Lucas and M. Schultheis