APA (7th ed.) Citation

Villata, M., & Heidt, J. (2006). The unprecedented optical outburst of the quasar 3C 454.3. Astronomy and astrophysics, 453(3), . https://doi.org/10.1051/0004-6361:20064817

Chicago Style (17th ed.) Citation

Villata, Massimo, and Jochen Heidt. "The Unprecedented Optical Outburst of the Quasar 3C 454.3." Astronomy and Astrophysics 453, no. 3 (2006). https://doi.org/10.1051/0004-6361:20064817.

MLA (9th ed.) Citation

Villata, Massimo, and Jochen Heidt. "The Unprecedented Optical Outburst of the Quasar 3C 454.3." Astronomy and Astrophysics, vol. 453, no. 3, 2006, https://doi.org/10.1051/0004-6361:20064817.