APA (7th ed.) Citation

Nilsson, K., Heidt, J., & Wagner, S. (1999). Discovery of a blue arc near the BL Lacertae object RGB 1745+398. Astronomy and astrophysics, 343, .

Chicago Style (17th ed.) Citation

Nilsson, Kari, Jochen Heidt, and Stefan Wagner. "Discovery of a Blue Arc Near the BL Lacertae Object RGB 1745+398." Astronomy and Astrophysics 343 (1999).

MLA (9th ed.) Citation

Nilsson, Kari, et al. "Discovery of a Blue Arc Near the BL Lacertae Object RGB 1745+398." Astronomy and Astrophysics, vol. 343, 1999.