Physics of Black Holes
  MLA
  Papantonopoulos, Eleftherios, Jürgen Ehlers, and Klaus Hepp. Physics of Black Holes. Springer Berlin Heidelberg, 2009.
  APA
  Papantonopoulos, E., Ehlers, J., & Hepp, K. (2009). Physics of Black Holes. Springer Berlin Heidelberg.
  Chicago
  Papantonopoulos, Eleftherios, Jürgen Ehlers, and Klaus Hepp. Physics of Black Holes. : Springer Berlin Heidelberg, 2009.