Phleps, Stefanie Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;
Bell, E. F., Phleps, S., Somerville, R. S., Wolf, C., Borch, A., & Meisenheimer, K. (2006). The merger rate of massive galaxies. Astrophysical Journal, 652(1 Part 1), 270-276. doi:10.1086/508408.