Erwin, Peter Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;
Erwin, P. (2018). The dependence of bar frequency on galaxy mass, colour, and gas content – and angular resolution – in the local universe. Monthly Notices of the Royal Astronomical Society, 474(4), 5372-5392. doi:10.1093/mnras/stx3117.