Title: Extreme HBL behavior of Markarian 501 during 2012
Authors: M.L. Ahnen , …W. Bednarek,... A. Niedźwiecki,…J. Sitarek,…D. Sobczyńska, et al.
Journal: Astronomy & Astrophysics
Publication type: article
DOI: 10.1051/0004-6361/201833704