GRB 090530: RTT150 optical observation. Balman, S. ; Parmaksizoglu, M. ; Eker, Z. ; Kiziloglu, U. ; Gogus, E. ; Bikmaev, I. ; Sakhibullin, N. ; Burenin, R. ; Pavlinsky, M. ; Sunyaev, R. Abstract Publication: GRB Coordinates Network Pub Date: 2009 Bibcode: 2009GCN..9487....1B