Riffert, H., Ruder, H., Nollert, H., & Hehl, F. W. Relativistic Astrophysics. Springer International Publishing.
Lua i Stíl Chicago (17ú heag.)Riffert, Harald, Hanns Ruder, Hans-Peter Nollert, agus Friedrich W. Hehl. Relativistic Astrophysics. Cham: Springer International Publishing.
Lua MLA (8ú heag.)Riffert, Harald, et al. Relativistic Astrophysics. Springer International Publishing.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.