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Bertacca, D. B. Sanders, D. Di Ferdinando, D. Karagiannis, D. Le Mignant, D. Maino, D. O'Ryan, D. Potter, D. Sapone, D. Sciotti, D. Scott, D. Tavagnacco, D. Vergani, E. A. Valentijn, E. Bozzo, E. Branchini, E. Franceschi, E. Gaztanaga, E. Keih\\\"anen, E. Maiorano, E. M. Baeten, E. Medinaceli, E. Merlin, E. Romelli, E. Sarpa, E. Sellentin, E. Soubrie, Euclid Collaboration: M. Walmsley, E. Zucca, F. Atrio-Barandela, F. Buitrago, F. Caro, F. Cogato, F. Courbin, F. De Paolis, F. Dubath, F. Faustini, F. Finelli, F. Giacomini, F. Grupp, F. Hormuth, F. J. Castander, F. Lepori, F. Mannucci, F. Marulli, F. M. Zerbi, F. Pasian, F. Passalacqua, F. Raison, F. Shankar, F. Torradeflot, G. Ca\\~nas-Herrera, G. Castignani, G. Congedo, G. De Lucia, G. Desprez, G. F. Lesci, G. Gozaliasl, G. Leroy, G. Maggio, G. Mainetti, G. Meylan, G. Morgante, G. Polenta, G. Riccio, G. Rodighiero, G. Seidel, G. Sirri, G. Testera, G. Verdoes Kleijn, G. Verza, G. Zamorani, H. Aussel, H. B\\\"ohringer, H. Degaudenzi, H. 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