GRB 090530: further NOT optical observations. Xu, D. ; Leloudas, G. ; Malesani, D. ; Fynbo, J. P. U. ; Hjorth, J. ; Jakobsson, P. ; Liimets, T. Abstract Publication: GRB Coordinates Network Pub Date: 2009 Bibcode: 2009GCN..9488....1X