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Conselice, C. Padilla, C. Sirignano, C. Stone, D. Bonino, D. Sapone, D. Scott, E.A. Valentijn, E. Branchini, E. Franceschi, E. Keih\\\"anen, E. Maiorano, E. Medinaceli, E. Merlin, E. Munari, E. Romelli, E. Rossetti, E. Slezak, E. Sola, E. Zucca, F. Buitrago, F. Courbin, F. Durret, F. Grupp, F. Hormuth, F. Marulli, F. Pasian, F. Raison, F.R. Marleau, F. Ruppin, F. Torradeflot, G. Congedo, G. De Lucia, G.D. Racca, G. Meylan, G.P. Candini, G. Polenta, G. Riccio, G. Seidel, G. Sirri, G. Verdoes Kleijn, G. Zamorani, H. Degaudenzi, H. Hoekstra, H.I. Teplitz, H.J. McCracken, H. Kurki-Suonio, H.M. Courtois, H.-W. Rix, I. Hook, I. Lloro, I. Tereno, I. Tutusaus, J.B. Golden-Marx, J. Brinchmann, J. Carretero, J.-C. Cuillandre, J. Dinis, J.G. Sorce, J. Hoar, J. Mart\\'in-Fleitas, J. Rhodes, J. Skottfelt, J. Weller, J.W. Nightingale, K. George, K. Jahnke, K. Markovic, K. Pedersen, L.A. Popa, L. Conversi, L. Guzzo, L. Moscardini, L. Pozzetti, L. Stanco, L. Valenziano, M. Baldi, M. Bolzonella, M. 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