GRB 020812 : optical afterglow candidate. Kawabata, T. ; Morishita, T. ; Hatayama, T. ; Miyata, T. ; Nishiura, S. ; Mito, H. ; Urata, Y. ; Yamaoka, H. Abstract Publication: GRB Coordinates Network Pub Date: 2002 Bibcode: 2002GCN..1489....1K