F. Frontera et al., Spectral evolution of gamma-ray bursts with BeppoSAX and correlation with X-ray afterglow properties, ASTR AST SS, 138(3), 1999, pp. 399-400
We report some comparative results of an investigation devoted to study the
spectral evolution of a sample of Gamma-Ray Bursts. They were simultaneous
ly detected with both the Gamma-Ray Burst Monitor and the Wide Field Camera
s aboard the BeppoSAX satellite and were reobserved with the Narrow Field I
nstruments aboard the same satellite.