APA (7th ed.) Citation

Frebel, A., & Christlieb, N. (2007). Discovery of HE 1523-0901: A strongly r-process-enhanced metal-poor star with detected Uranium. The astrophysical journal. Part 2, Letters, 660(2), . https://doi.org/10.1086/518122

Chicago Style (17th ed.) Citation

Frebel, Anna, and Norbert Christlieb. "Discovery of HE 1523-0901: A Strongly R-process-enhanced Metal-poor Star with Detected Uranium." The Astrophysical Journal. Part 2, Letters 660, no. 2 (2007). https://doi.org/10.1086/518122.

MLA (9th ed.) Citation

Frebel, Anna, and Norbert Christlieb. "Discovery of HE 1523-0901: A Strongly R-process-enhanced Metal-poor Star with Detected Uranium." The Astrophysical Journal. Part 2, Letters, vol. 660, no. 2, 2007, https://doi.org/10.1086/518122.