Brightman, M. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Baloković, M., Comastri, A., Harrison, F. A., Alexander, D. M., Ballantyne, D. R., Bauer, F. E., et al. (2014). The NuSTAR view of nearby compton-thick active galactic nuclei: the cases of NGC 424, NGC 1320, and IC 2560. The Astrophysical Journal, 794(2): 111. doi:10.1088/0004-637X/794/2/111.