XRF 040812: optical observation at VLT. D'Avanzo, P. ; Cucchiara, A. ; Tagliaferri, G. ; Malesani, D. ; Fugazza, D. ; Covino, S. ; Campana, S. Abstract Publication: GRB Coordinates Network Pub Date: 2004 Bibcode: 2004GCN..2651....1D