Collmar, W. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Collmar, W., & Zhang, S. (2014). LS 5039 – the counterpart of the unidentified MeV source GRO J1823-12. Astronomy & Astrophysics, 565: A38, pp. 1-10. doi:10.1051/0004-6361/201323193.