1. Allende P. C., Lambert D. L., Asplund M. 2001, ApJ, 556, L63
2. Amarsi A. M. et al.. 2019, AAP, 624, A111. https://doi.org/10.1051/0004-6361/201833603
3. Anders E., Grevesse N. 1989, Geochim. Cosmochim. Acta, 53, 197
4. Asplund M., Grevesse N., & Sauval A.J. 2005, Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis, ASP Conf. Series, Vol. 336, Proceedings of a symposium held 17–19 June 2004 in Austin, Texas in honor of David L. Lambert. Edited by Thomas G. Barnes III and Frank N. Bash. San Francisco: p. 25
5. Asplund M., Grevesse N., Sauval A. J., Scott P. 2009, ARA&A, 47, 481