GRB 141020A: Continued Mondy Observations, optical upper limit. Mazaeva, E. ; Klunko, E. ; Volnova, A. ; Eselevich, M. ; Korobtsev, I. ; Pozanenko, A. Abstract Publication: GRB Coordinates Network Pub Date: 2014 Bibcode: 2014GCN.16976....1M