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Humphreys, E. M. L. (2007). «Submillimeter and millimeter masers». Astrophysical Masers and their Environments, Proceedings of the International Astronomical Union, IAU Symposium. 242 (1): 471–480. Bibcode:2007IAUS..242..471H. arXiv:0705.4456. doi:10.1017/S1743921307013622
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Eldridge, J. J.; Tout, C. A. (2004). «Exploring the divisions and overlap between AGB and super-AGB stars and supernovae». Memorie della Società Astronomica Italiana. 75. 694 páginas. Bibcode:2004MmSAI..75..694E. arXiv:astro-ph/0409583