GRB 060708: PROMPT optical limits. Parris, S. ; Smith, A. ; Nysewander, M. ; Reichart, D. ; Ivarsen, K. ; Foster, A. ; Lacluyze, A. ; Crain, J. A. Abstract Publication: GRB Coordinates Network Pub Date: 2006 Bibcode: 2006GCN..5299....1P