References

• Castro-Tirado A.J., 1997, IAU Circ. 6848
• Deng M., Schaefer B.E., 1998, ApJ 502, L109 NASA ADS
• Djorgovski S.G., 1998, ApJL 508, L17 NASA ADS
• Krumholz M., et al., 1998, ApJL 506, L81 NASA ADS
• Kulkarni S.R., et al., 1998, Nat 393, 35 NASA ADS
• Metzger M.R., et al., 1997, Nat 387, 878 NASA ADS
• Norris J.P., Nemiroff R.J., Bonnel J.T., Scargle J.D., 1995, Gamma-Ray Bursts, Kouveliotou C., Briggs M.S., Fishman G.J. (eds.), AIP Conf. Proc. 384, 72
• Schaefer B.E., et al., 1997, ApJL 489, 693 NASA ADS
• Totani T., 1997, ApJ 486, L71 NASA ADS
• Totani T., 1998, astro-ph/9801105
• Wijers A.M.J.R., Bloom S.J., Bagla S.J., Natarajan P., MNRAS 1, 1997