The discovery of the most distant known type Ia supernova at redshift 1.914

Dennis Jones, S.A. Rodney, A.G. Riess, T. Dahlen, S. Casertano, A. Koekemoer, H.C. Ferguson, N.A. Grogin, B. Mobasher, C. McCully, C.R. Keeton, B. Patel, S.W. Jha, Jens Hjorth, T.F. Frederiksen, L.-G. Strolger, T.G. Wiklind, P. Challis, R.P. Kirshner, D. KocevskiO. Graur, B. Hayden, P. Garnavich, B.J. Weiner, A.V. Filippenko