Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A., Anton, G., Balzer, A., …Collaboration, H. (2012). Search for Dark Matter Annihilation Signals from the Fornax Galaxy Cluster with H.E.S.S. Astrophysical Journal, 750, https://doi.org/10.1088/0004-637x/750/2/123