GRB 160121A: redshift from the 10.4m GTC. Sanchez-Ramirez, R. ; Oates, S. R. ; Tello, J. C. ; Geier, S. ; Tristam, P. ; Castro-Tirado, A. J. Abstract Publication: GRB Coordinates Network Pub Date: 2016 Bibcode: 2016GCN.18925....1S