Hofmann, Werner Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;
http://www.astronomerstelegram.org/?read=4098 (Verlagsversion)
Hofmann, W., & for the H. E. S. S. Collaboration (2012). Swift XRT follow-up of very high energy gamma-ray emission detected from PKS 1440-389 with H.E.S.S. The Astronomer's Telegram, 2012: ATel #4098.