Aharonian, F. A., Behera, B., Hauser, M., Pedaletti, G., Pühlhofer, G., Schwemmer, S., . . . Wagner, S. (2008). HESS observations and VLT spectroscopy of PG 1553+113. Astronomy and astrophysics, 477(2), .
Chicago Style (17th ed.) CitationAharonian, Felix A., Bagmeet Behera, Marcus Hauser, Giovanna Pedaletti, Gerd Pühlhofer, Stephanie Schwemmer, Pak Hin Tam, and Stefan Wagner. "HESS Observations and VLT Spectroscopy of PG 1553+113." Astronomy and Astrophysics 477, no. 2 (2008).
MLA (9th ed.) CitationAharonian, Felix A., et al. "HESS Observations and VLT Spectroscopy of PG 1553+113." Astronomy and Astrophysics, vol. 477, no. 2, 2008.
Warning: These citations may not always be 100% accurate.