L'Uomo Duplicato

by Piergiorgio Nicolazzini, Alan Brennert, Richard Calder, Paul Di Filippo, S.N. Dyer, Greg Egan, James Patrick Kelly, R.A. Lafferty, Ursula K. Le Guin, David Memmott, Franco Ricciardiello, Pamela Sargent, Michael Marshall Smith, Brian M. Stableford, Theodore Sturgeon, John Varley, Walter Jon Williams, Gene Wolfe, Danilo Arona