Annibali, F., & Pasquali, A. (2017). Planetary nebulae and H II regions in the starburst irregular galaxy NGC 4449 from LBT MODS data. The astrophysical journal, 843(1), . https://doi.org/10.3847/1538-4357/aa7678
Chicago Style (17th ed.) CitationAnnibali, Francesca, and Anna Pasquali. "Planetary Nebulae and H II Regions in the Starburst Irregular Galaxy NGC 4449 from LBT MODS Data." The Astrophysical Journal 843, no. 1 (2017). https://doi.org/10.3847/1538-4357/aa7678.
MLA (9th ed.) CitationAnnibali, Francesca, and Anna Pasquali. "Planetary Nebulae and H II Regions in the Starburst Irregular Galaxy NGC 4449 from LBT MODS Data." The Astrophysical Journal, vol. 843, no. 1, 2017, https://doi.org/10.3847/1538-4357/aa7678.
Warning: These citations may not always be 100% accurate.