Asplund, Martin Stellar Astrophysics, MPI for Astrophysics, Max Planck Society;
Cohen, J. G., Gould, A., Thompson, I. B., Feltzing, S., Bensby, T., Johnson, J. A., et al. (2010). A puzzle involving galactic bulge microlensing events. The Astrophysical Journal, 711(1), L48-L52. doi:10.1088/2041-8205/711/1/L48.