Authors: Fischer, JU Hasinger, G Schwope, AD Brunner, H Boller, T Trumper, J Voges, W Neizvestny, S

Citation: Ju. Fischer et al., The ROSAT bright survey: I. Identification of an AGN sample with hard ROSAT X-ray spectra, ASTRON NACH, 319(6), 1998, pp. 347-368