APA (7th ed.) Citation

Hopkins, P. F., & Springel, V. (2005). Black holes in galaxy mergers: Evolution of quasars. Arxiv.

Chicago Style (17th ed.) Citation

Hopkins, Philip F., and Volker Springel. "Black Holes in Galaxy Mergers: Evolution of Quasars." Arxiv 2005.

MLA (9th ed.) Citation

Hopkins, Philip F., and Volker Springel. "Black Holes in Galaxy Mergers: Evolution of Quasars." Arxiv, 2005.

Warning: These citations may not always be 100% accurate.