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Pankova, D.Z. Besson, E. Bernardini, E. Blaufuss, E. Bourbeau, E. Cheung, E. Colombo, E.del Pino Rosendo, E. de Ona Wilhelmi, E. Friedman, E. Hansen, E. Jacobi, E. Lindfors, E. Moretti, E. Pinat, E.Prandini, E. Pueschel, E. Resconi, E. Roache, E. Unger, E. Vogel, E. Woolsey, F. Borracci, F. Bos, F. Dazzi, F. Di Pierro, F. Halzen, F. Huang, F. Krennrich, F. Lauber, F. Longo, F. McNally, F. Tavecchio, F. Tenholt, G.Anton, G. Binder, G. Bonnoli, G.C. Hill, G. de Wasseige, G. Golup, G.H. Collin, G.H. Gillanders, G.H. Sembroski, G. Hughes, G. Kohnen, G. Kruckl, G. Maggi, G. Maier, G. Maneva, G. Merino, G.M. Spiczak, G. Neer, G. Pedaletti, G.S. Japaridze, G. Tevsic, G.T. Przybylski, G.T. Richards, G. Vanzo, G.W. Sullivan, G. Yodh, H. Dembinski, H.Dujmovic, H. Fleischhack, H.J. Dickinson, H. Kolanoski, H. Kubo, H. Niederhausen, H. Pandya, H.-P. Bretz, H. Taavola, I. Ansseau, IceCube Collaboration: M.G. Aartsen, I. Puljak, I. Reichardt, I. Sadeh, I. Snidaric, I. Taboada, I. Telezhinsky, I. Vovk, J.A. Aguilar, J.A. Barrio, J.Adams, J.A. Pepper, J.Auffenberg, J. Becerra Gonzalez, J.Becker-Tjus, J. Braun, J.C. Diaz-Velez, J. Cortina, J.D. Eisch, J. Dumm, J.E. Ward, J. Feintzeig, J. Felde, J. Gallagher, J.G. Gonzalez, J. Grube, J. Herrera, J. Hignight, J. Holder, J. Hose, J.J. Beatty, J. Kiryluk, J. Kunnen, J. Kushida, J.L. Contreras, J.L. Kelley, J.L. Lanfranchi, J. Lunemann, J. Madsen, J.M. Conrad, J.M. Miranda, J.M. Paredes, J. Palacio, J.P.A.M. de Andre, J.P. Dumm, J.P. Finley, J. Poutanen, J.P. Yanez, J. Quinn, J. Rico, J. Rodriguez Garcia, J. Sandroos, J. Sitarek, J. Stettner, J. Tatar, J. Thaele, J. Tyler, J. Vandenbroucke, J. van Santen, J.V Cardenzana, J. Veenkamp, J.V. Tucci, K. Abraham, K. Andeen, K.B.M. Mahn, K. Byrum, K. Clark, K.D. de Vries, K.D. Hoffman, K. Filimonov, K. Frantzen, K. Ghorbani, K. Hanson, K.-H.Becker, K. Helbing, K. Holzapfel, K. Hoshina, K. Hultqvist, K. Jero, K. Kodani, K. Krings, K. Mallot, K. Mannheim, K. Mase, K. Meagher, K. Nilsson, K. Nishijima, K. Noda, K. Ragan, K. Rawlins, K. Satalecka, K. Shahinyan, K. Wiebe, K. Woschnagg, L.A. Antonelli, L. Brayeur, L. Ciupik, L. Classen, L. Font, L. Fortson, L. Gerhardt, L. Gladstone, L. Kopke, L. Lu, L. Maraschi, L. Mohrmann, L. Nogues, L. Perri, L. Radel, L.Sabbatini, L. Schumacher, L. Takalo, L. Wille, L. Wills, M. Ackermann, M. Ahlers, M.Ahrens, M. Archinger, M.Bissok, M. Borner, M. Buchovecky, M. Casier, M. Cerruti, M. Day, M. de With, M. Doert, M. Doro, M. Dunkman, M. Engelkemeier, M. Errando, M. Garczarczyk, M. Gaug, M. Hayashida, M. Huber, M. Hutten, M.H. Wu, M. Jeong, M.J. Lang, M.J. Larson, M. Jurkovic, M.J. Weiss, M. Kauer, M. Kertzman, M. Kim, M. Kowalski, M. Krause, M. Kroll, M. Labare, M. Lesiak-Bzdak, M. Leuermann, M. Lopez, M. Makariev, M. Mandelartz, M. Manganaro, M. Mariotti, M. Martinez, M. Medici, M. Meier, M. Moulai, M. Nievas Rosillo, M.N. Tobin, M. Palatiello, M.P. Connolly, M. Peresano, M. Persic, M. Pohl, M. Quinnan, M. Rameez, M. Relich, M. Ribo, M. Richman, M. Rongen, M. Santander, M. Song, M. Strzys, M. Sutherland, M. Teshima, M. Tselengidou, M. Usner, M. van Rossem, M. Vehring, M.V. Fonseca, M. Voge, M. Vraeghe, M. Wallraff, M. Will, M. Wolf, M. Zoll MAGIC Collaboration: M.L. Ahnen, N. Godinovic, N. Haakansson, N. Kelley-Hoskins, N. Kurahashi, N.L. Strotjohann, N. Park, N. van Eijndhoven, N. Wandkowsky, O. Blanch, O. Botner, O. Hervet, O. Penek, P.A. Evenson, P. Antoranz, P.A. Toale, P. Bangale, P.B. Price, P. Colin, P. Da Vela, P. Desiati, P. Eller, P. Giammaria, P.G. Prada Moroni, P. Kaaret, P. Kar, P. Majumdar, P. Moriarty, P. Peiffer, P. Schlunder, P. Temnikov, P.T. Reynolds, P. Wilcox, Q. Feng, R.A. Ong, R. Bay, R. Bird, R. Clavero, R. Franke, R.G. Stokstad, R. Hellauer, R. Hoffmann, R. J. Garcia Lopez, R. Koirala, R. Konietz, R. Lopez-Coto, R. Maruyama, R. Maunu, R. Mirzoyan, R. Mukherjee, R. Nahnhauer, R. Paoletti, R. Reimann, R. Strom, R. Zanin VERITAS Collaboration: A.U. Abeysekara, S. Ansoldi, S. Archambault, S. Axani, S. BenZvi, S. Blot, S. Bonnefoy, S. Boser, S. Bron, S. Buson, S.C. Nowicki, S. Coenders, S. Covino, S. De Ridder, S. Einecke, S.E. Sanchez-Herrera, S. Euler, S. Fahey, S. Flis, S. Griffin, S. Hickford, S. In, S. Kopper, S. Kumar, S. Kunwar, S. Lombardi, S. Mancina, S. McArthur, S. Miarecki, S. O'Brien, S. Paiano, S.P. Wakely, S.R. Klein, S. Robertson, S. Sarkar, S. Schoenen, S. Schoneberg, S. Schroeder, S. Seunarine, S. Ter-Antonyan, S. Tilav, S. Toscano, S. Vanheule, S.W. Barwick, S. Westerhoff, S. Wickmann, S. Yoshida, T. Anderson, T.B. Humensky, T. Bretz, T. Carver, T. DeYoung, T. Ehrhardt, T. Fuchs, T. Glauch, T. Glusenkamp, T. Hansmann, T. Karg, T.K. Gaisser, T. Kintscher, T. Kittler, T. Kuwabara, T. Menne, T. Meures, T. Montaruli, T. Nguyen, T. Palczewski, T. Ruhe, T.R. Wood, T. Saito, T. Schmidt, T. Schweizer, T. Stanev, T. Steinbring, T. Stezelberger, T. Suric, T.Terzic, T. Toyama, U.Barres de Almeida, U. Katz, U. Menzel, U. Naumann, V. Baum, V. 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