An Efficient Approach to Obtaining Large Numbers of Distant Supernova Host Galaxy Redshifts by Lidman, C, Ruhlmann-Kleider, V, Sullivan, M, Myzska, J, Dobbie, P, Glazebrook, K, Mould, J, Astier, P, Balland, C, Betoule, M, Carlberg, R, Conley, A, Fouchez, D, Guy, J, Hardin, D, Hook, I, Howell, D, Pain, R, Palanque-Delabrouille, N, Perrett, K, Pritchet, C, Regnault, N, Rich, J