Hasinger, G. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Lamer, G., Wagner, S., Zamorani, G., Mignoli, M., Hasinger, G., Giedke, K., et al. (2003). Optical identifications in the Marano field XMM-Newton survey. Astronomische Nachrichten, 324(1-2), 16-19.