Zier, C. (2000). Binary black holes and Tori active galactic nuclei. Universität Bonn.
Chicago Style aipamenaZier, Christian. Binary Black Holes and Tori Active Galactic Nuclei. Germany: Universität Bonn, 2000.
MLA aipamenaZier, Christian. Binary Black Holes and Tori Active Galactic Nuclei. Universität Bonn, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.