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A. Archer, A. A. Mokrushina, A. Babic, A. Barnacka, A. Berdyugin, A. Biland, A. Carosi, A. Chatterjee, A. C. Readhead, A. C. Sadun, A. De Angelis, A. Falcone, A. Fern\\'andez-Barral, A. Furniss, A. Gonz\\'alez Mu\\~noz, A. Hahn, A. Hornstrup, A. La Barbera, A. L\\\"ahteenm\\\"aki, A. L\\'opez-Oramas, A. Moralejo, A. Niedzwiecki, A. Overkemping, A. P. Marscher, A. Popkow, A. Sievers, A. Sillanp\\\"a\\\"a, A. Stamerra, A. Strigachev, A. Treves, A. Weinstein, A. Wilhelm, A. W. Smith, A. Zoglauer, B. Banerjee, B. Biasuzzi, B. De Lotto, B. Jordan, B. Marcote, B. W. Grefenstette, B. Zitzer, C. A. Johnson, C. Delgado Mendez, C. Eswaraiah, C. Fruck, C. J. Hailey, C. Leto, C. M. Raiteri, C. M. Urry, C. Schultz, D. A. Blinov, D. A. Morozova, D. A. Williams, D. Barret, D. Dominis Prester, D. Dorner, D. Eisenacher, D. Elsaesser, D. Fidalgo, D. F. Torres, D. Galindo, D. Garrido Terrats, D. Guberman, D. Hrupec, D. Kieda, D. Lelas, D. M. Alexander, D. Mazin, D. Nakajima, D. Nieto, D. Paneque, D. 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Chinchilla, P. Colin, P. Da Vela, P. Giammaria, P. Giommi, P. G. Prada Moroni, P. H. Mao, P. Kaaret, P. Majumdar, P. Moriarty, P. Temnikov, P. T. Reynolds, Q. Feng, R. A. Ong, R. Bachev, R. Bird, R. Blandford, R. Clavero, R. J. Garc\\'ia L\\'opez, R. L\\'opez-Coto, R. Mirzoyan, R. Orito, R. Paoletti, R. Reinthal, R. Zanin, S. Ansoldi, S. Bonnefoy, S. Covino, S. E. Boggs, S. Einecke, S. G. Jorstad, S. Griffin, S. Ibryamov, S. Lombardi, S. McArthur, S. N. Shore, S. O. Kurtanidze, S. Paiano, S. Palacio, S. Puccetti, S. Sun, S. T. Griffiths, S. Vincent, T. B. Humensky, T. Bretz, T. G\\\"uver, the MAGIC collaboration: M. L. Ahnen, the NuSTAR team: M. Ajello, the VERITAS collaboration: S. Archambault, T. Hovatta, T. Kitaguchi, T. Nelson, T. Saito, T. Schweizer, T. S. Grishina, T. Steinbring, T. Terzi\\'c, T. Toyama, U. Barres de Almeida, U. Menzel, V. Bugaev, V. Karamanavis, V. M. Larionov, V. Neustroev, V. Ramakrishnan, V. Rana, V. Scapin, V. Verguilov, W. Bednarek, W. Benbow, W. Cui, W. 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