%0 Journal Article %T Gamma-ray burst groups observed by BATSE, Beppo-Sax and Swift %A I. Horvath %A L. G Balazs %A Z. Bagoly %A P. Veres %A D. Szecsi %J Physics %D 2015 %I arXiv %X Short and long bursts were identified by the BATSE team in the early 90s. A decade ago there were some suggestions about the intermediate duration type of bursts. We are going to summarize recent analyses of the duration distributions of the Beppo-Sax and Swift data. Our conclusion is all the three satellites (CGRO, Swift, Beppo-Sax) can see the third type of the GRBs. The properties of the group members are very similar in the different data sets. %U http://arxiv.org/abs/1508.04946v1