GRB 040403: optical observations. Khamitov, I. ; Aslan, Z. ; Parmaksizoglu, M. ; Burenin, R. ; Pavlinsky, M. ; Sunyaev, R. ; Bikmaev, I. ; Sakhibullin, N. Abstract Publication: GRB Coordinates Network Pub Date: 2004 Bibcode: 2004GCN..2562....1K