  One of the most important task of the Gamma-Ray Burst field is the
classification of the bursts. Many researches have proven the existence of the
third kind (intermediate duration) of GRBs in the BATSE data. Recent works have
analyzed BeppoSax and Swift observations and can also identify three types of
GRBs in the data sets. However, the class memberships are probabilistic we have
enough observed redshifts to calculate the redshift and spatial distribution of
the intermediate GRBs. They are significantly farther than the short bursts and
seems to be closer than the long ones.
