Robuta

https://gcn.nasa.gov/circulars/12900 GCN - Circulars - 12900 - GRB 120118B: optical upper limit gcn circulars grb optical upper https://gcn.nasa.gov/circulars/12853 GCN - Circulars - 12853 - GRB 120118B: MASTER optical observations gcn circulars grb master optical