Letter NATURE (2012)
Rest, A; Prieto, JL; Walborn, NR; Smith N.; Bianco, FB; Chornock, R; Welch, DL; Howell, DA; Huber, ME; Foley, RJ; Fong, W; Sinnott, B; Bond, HE; Smith, RC; Toledo, I; et. al.
Keywords: echoes