Skottfelt, J., & Giannini, E. (2013). EMCCD photometry reveals two new variable stars in the crowded central region of the globular cluster NGC 6981. Astronomy and astrophysics, 553, . https://doi.org/10.1051/0004-6361/201321430
Chicago-Zitierstil (17. Ausg.)Skottfelt, Jesper, und Emanuela Giannini. "EMCCD Photometry Reveals Two New Variable Stars in the Crowded Central Region of the Globular Cluster NGC 6981." Astronomy and Astrophysics 553 (2013). https://doi.org/10.1051/0004-6361/201321430.
MLA-Zitierstil (9. Ausg.)Skottfelt, Jesper, und Emanuela Giannini. "EMCCD Photometry Reveals Two New Variable Stars in the Crowded Central Region of the Globular Cluster NGC 6981." Astronomy and Astrophysics, vol. 553, 2013, https://doi.org/10.1051/0004-6361/201321430.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.