GRB 050803: RTT150 optical observations. Burenin, R. ; Tkachenko, A. ; Pavlinsky, M. ; Sunyaev, R. ; Khamitov, I. ; Aslan, Z. ; Kiziloglu, U. ; Alpar, A. ; Bikmaev, I. ; Sakhibullin, N. Abstract Publication: GRB Coordinates Network Pub Date: 2005 Bibcode: 2005GCN..3763....1B