Wide-Field Infrared Survey Telescope (WFIRST) Interim Report
J. Green, P. Schechter, C. Baltay, R. Bean, D. Bennett, Robert J. Brown, C. Conselice, M. Donahue, S. Gaudi, T. Lauer, S. Perlmutter, B. Rauscher, J. Rhodes, T. Roellig, D. Stern, T. Sumi, A. Tanner, Yun Wang, E. Wright, N. Gehrels, R. Sambruna, W. Traub