Pietsch, W. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Tüllmann, R., Pietsch, W., Rossa, J., Breitschwerdt, D., & Dettmar, R.-J. (2006). The multi-phase gaseous halos of late-type spirals. In A. Wilson (Ed.), Proceedings of the X-ray Universe 2005 (pp. 415-420). Noordwijk, The Netherlands: ESA Publications Division.