APA (7th ed.) Citation

Meusinger, H., Birkle, K., & Mandel, H. (2010). J004457+4123 (Sharov 21): Not a remarkable nova in M 31 but a background quasar with a spectacular UV flare. Astronomy and astrophysics, 512(3/4), .

Chicago Style (17th ed.) Citation

Meusinger, Helmut, Kurt Birkle, and Holger Mandel. "J004457+4123 (Sharov 21): Not a Remarkable Nova in M 31 but a Background Quasar with a Spectacular UV Flare." Astronomy and Astrophysics 512, no. 3/4 (2010).

MLA (9th ed.) Citation

Meusinger, Helmut, et al. "J004457+4123 (Sharov 21): Not a Remarkable Nova in M 31 but a Background Quasar with a Spectacular UV Flare." Astronomy and Astrophysics, vol. 512, no. 3/4, 2010.

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