GRB 181020A: LCO Cerro Tololo observations. Cucchiara, A. ; Guidorzi, C. ; Martone, R. ; Kobayashi, S. ; Mundell, C. G. ; Gomboc, A. ; Steele, I. A. ; Morris, D. Abstract Publication: GRB Coordinates Network Pub Date: 2018 Bibcode: 2018GCN.23358....1C