Smolinski, J. P., & Martell, S. L. (2011). A survey of CN and CH variations in galactic globular clusters from Sloan Digital Sky Survey spectroscopy. The astronomical journal, 142(4), . https://doi.org/10.1088/0004-6256/142/4/126
Chicago Style (17th ed.) CitationSmolinski, Jason P., and Sarah L. Martell. "A Survey of CN and CH Variations in Galactic Globular Clusters from Sloan Digital Sky Survey Spectroscopy." The Astronomical Journal 142, no. 4 (2011). https://doi.org/10.1088/0004-6256/142/4/126.
MLA (9th ed.) CitationSmolinski, Jason P., and Sarah L. Martell. "A Survey of CN and CH Variations in Galactic Globular Clusters from Sloan Digital Sky Survey Spectroscopy." The Astronomical Journal, vol. 142, no. 4, 2011, https://doi.org/10.1088/0004-6256/142/4/126.
Warning: These citations may not always be 100% accurate.