Discovery of TeV γ-ray emission from PKS 0447-439 and derivation of an upper limit on its redshift - Abramowski, Attila; Zacharias, Michael; Becherini, Yvonne; Behera, Bagmeet; Cologna, Gabriele; Kaufmann, Sarah; Mohamed, Mahmoud; Quirrenbach, Andreas; Schwemmer, Stephanie; Wagner, Stefan (Astronomy and astrophysics, 2013)
Gesehen am 21.05.2013