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Chiadini, F. Cipriano, F. Cleva, F. De Lillo, F. De Matteis, F. Di Giovanni, F. Di Renzo, F. Fidecaro, F. Frasconi, F. Garufi, F. Gissi, F. K\\'ef\\'elian, F. Linde, F. Marchesoni, F. Marion, F. Martelli, F. Morawski, F. Muciaccia, F. Nocera, F. Pannarale, F. Paoletti, F. Piergiovanni, F. Pilo, F. Puosi, F. Ricci, F. Robinet, F. Salemi, F. Sorrentino, F. Travasso, F. Vetrano, G. A. Prodi, G. Ballardin, G. Baltus, G. Bogaert, G. Bruno, G. Cagnoli, G. Carapella, G. Carullo, G. Cella, G. Chiarini, G. Ciani, G. Favaro, G. Gemme, G. G. Fronz\\'e, G. Greco, G. Grignani, G. Guix\\'e, G. Hemming, G. Koekoek, G. Losurdo, G. M. Guidi, G. Nelemans, G. Oganesyan, G. Pagano, G. Pagliaroli, G. Pillant, G. Raaijmakers, G. Riemenschneider, G. Stratta, G. Vedovato, H. Heitmann, H. J. Bulten, H. Vocca, I. Belahcene, I. Cordero-Carri\\'on, I. Di Palma, I. Ferrante, I. Fiori, I. La Rosa, I. Maksimovic, I. M. Pinto, I. Nardecchia, I. Tosta e Melo, J. A. Font, J. Baird, J. Brooks, J. Casanueva Diaz, J. Degallaix, J. F. J. van den Brand, J.-G. Ducoin, J. Harms, J. Janquart, J. Neilson, J.-P. Coulon, J.-P. Zendri, J. R. Cudell, J. Soldateschi, J. Steinlechner, J. V. van Heijningen, J.-Y. Vinet, K. Haris, K. Janssens, K. Leyde, K. Piotrzkowski, K. S. Phukon, K. Turbang, K. W. Tsang, L. Conti, L. D. Bonavena, L. Di Fiore, L. D'Onofrio, L. Errico, L. Giacoppo, L. Haegel, Ll. M. Mir, L. Mereni, L. Milano, L. Naticchioni, L. Pierini, L. Pinard, L. Rei, L. Rolland, L. Rosa, L. Salconi, L. Troiano, L. Trozzo, L. van der Schaaf, M.-A. Bizouard, M. Agathos, M. Ar\\`ene, M. Assiduo, M. Barsuglia, M. Bawaj, M. Bazzan, M. Bejger, M. Bischi, M. Bitossi, M. Boer, M. Boldrini, M. Branchesi, M. Breschi, M. Canepa, M. Cannavacciuolo, M. Carpinelli, M. Cie\\'slar, M. Cifaldi, M. Colpi, M. Croquette, M. C. Tringali, M. Cury{\\l}o, M. Davier, M. De Laurentis, M. Di Giovanni, M. Drago, M. Eisenmann, M. Fays, M. Gosselin, M. Granata, M. K. M. Bader, M. Kolstein, M. L. Chiofalo, M. Llorens-Monteagudo, M. Lopez Portilla, M. Lorenzini, M. Magnozzi, M. Mantovani, M. Mapelli, M. Martinez, M. Merzougui, M. Miravet-Ten\\'es, M. Montani, M. Pegoraro, M. Pichot, M. Piendibene, M. Pillas, M. Pinto, M. Pracchia, M. Principe, M. Punturo, M. Razzano, M. Romanelli, M. Seglar-Arroyo, M. Sieniawska, M. Spera, M. Tacca, M. Tonelli, M. Turconi, M. Valentini, M. van Beuzekom, M. Vardaro, M. Vas\\'uth, M. Was, N. Andres, N. Arnaud, N. Christensen, N. Khetan, N. Leroy, N. Letendre, N. Man, N. Radulesco, N. Sanchis-Gual, N. Singh, N. Sorrentino, N. S. Shcheblanov, N. van Bakel, N. van Remortel, O. Durante, O. Halim, O. Hannuksela, O. J. Piccinni, O. Minazzoli, O. S. Salafia, P.-A. Duverne, P. Astone, P. Barneo, P. Cerd\\'a-Dur\\'an, P. Chanial, P. Ciecielag, P. Dabadie, P.-F. Cohadon, P. Figura, P. Giri, P. Gruning, P. Gupta, P. Hello, P. Jaranowski, P. Kuijer, P. Lagabbe, P. Leaci, P. Popolizio, P. Prosposito, P. Puppo, P. Rapagnani, P. Rettegno, P. Ruggi, P. Szewczyk, P. T. H. Pang, P. Verma, Q. Meijer, R. Bonnand, R. Cavalieri, R. Chierici, R. Ciolfi, R. C. Walet, R. De Pietri, R. De Rosa, R. De Simone, R. Fittipaldi, R. Flaminio, R. Gamba, R. Gouaty, R. J. G. Jonker, R. Musenich, R. Passaquieti, R. Poggiani, R. Poulton, R. Romano, R. Soulard, R. Srinivasan, S. Albanesi, S. Ansoldi, S. Antier, S. Babak, S. Bagnasco, S. Bernuzzi, S. Bini, S. Canevarolo, S. Caudill, S. Chaty, S. Clesse, S. Corezzi, S. Cortese, S. Dall'Osso, S. Danilishin, S. D'Antonio, S. Del\\'eglise, S. Di Pace, S. Farinon, S. Frasca, S. Hild, S. J. Grimm, S. Katsanevas, S. Koley, S. Marsat, S. Mastrogiovanni, S. Nissanke, S. Perri\\`es, S. Rinaldi, S. Ronchini, S. Roy, S. Sayah, S. Schmidt, S. Steinlechner, Suvodip Mukherjee, T. Andrade, T. Andri\\'c, T. Briant, T. Bulik, T. Dal Canton, T. Dietrich, T. Di Girolamo, T. Harder, T. Jacqmin, T. Pradier, T. Regimbau, T. Zelenova, U. Bhardwaj, V. Benedetto, V. Boschi, V. Boudart, V. Dattilo, V. Fafone, V. Fiumara, V. Granata, V. Hui, Virgo Collaboration: F. Acernese, V. Juste, V. Loriette, V. Mangano, V. Martinez, V. Napolano, V. Pierro, V. Sequino, V. Sipala, V. Sordini, V. Spagnuolo, W. Chaibi, W. Del Pozzo, W. Plastino, Y. Bouffanais, Y. Guo, Y. Minenkov, Y. 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