APA (7th ed.) Citation

Aharonian, F. A., Emmanoulopoulos, D., Hauser, M., Pühlhofer, G., & Wagner, S. (2005). Observations of Mkn 421 in 2004 with HESS at large zenith angles. Astronomy and astrophysics, 437(1), . https://doi.org/10.1051/0004-6361:20078321

Chicago Style (17th ed.) Citation

Aharonian, Felix A., Dimitrios Emmanoulopoulos, Marcus Hauser, Gerd Pühlhofer, and Stefan Wagner. "Observations of Mkn 421 in 2004 with HESS at Large Zenith Angles." Astronomy and Astrophysics 437, no. 1 (2005). https://doi.org/10.1051/0004-6361:20078321.

MLA (9th ed.) Citation

Aharonian, Felix A., et al. "Observations of Mkn 421 in 2004 with HESS at Large Zenith Angles." Astronomy and Astrophysics, vol. 437, no. 1, 2005, https://doi.org/10.1051/0004-6361:20078321.