Konferenzbeitrag
Molendi, S.; Brinkmann, W.; Maccacaro, T.: Preliminary results on the properties of the EMSS AGNs as derived from the ROSAT all-sky survey. In: X-Ray Emission from Active Galactic Nuclei and the Cosmic X-Ray Background: Proceedings of a Conference held at the Max-Planck-Institut für extraterrestrische Physik, S. 216 - 219 (Hg.
Brinkmann, W.;
Trümper, J.). X-Ray Emission from Active Galactic Nuclei and the Cosmic X-Ray Background, Garching, Germany, 04. November 1991 - 08. November 1991. Max-Planck-Institut für extraterrestrische Physik, Garching, Germany (1992)