Robuta

https://gcn.nasa.gov/circulars/372?page=406&limit=100&view=index GCN - Circulars - 372 - GRB 990704 X-ray Observations x ray gcn circulars grb observations https://gcn.nasa.gov/circulars/372 GCN - Circulars - 372 - GRB 990704 X-ray Observations x ray gcn circulars grb observations https://gcn.nasa.gov/circulars/370 GCN - Circulars - 370 - GRB 990704, optical observations gcn circulars grb optical observations