Kemper, F.; De Koter, A.; Waters, L. B. F. M.; Bouwman, J.; Tielens, A. G. G. M. (2002). „Dust and the spectral energy distribution of the OH/IR star OH 127.8+0.0: Evidence for circumstellar metallic iron“. Astronomy and Astrophysics. 384-jild, № 2. 585-bet. arXiv:astro-ph/0201128. Bibcode:2002A&A...384..585K. doi:10.1051/0004-6361:20020036.
Kemper, F.; De Koter, A.; Waters, L. B. F. M.; Bouwman, J.; Tielens, A. G. G. M. (2002). „Dust and the spectral energy distribution of the OH/IR star OH 127.8+0.0: Evidence for circumstellar metallic iron“. Astronomy and Astrophysics. 384-jild, № 2. 585-bet. arXiv:astro-ph/0201128. Bibcode:2002A&A...384..585K. doi:10.1051/0004-6361:20020036.
Kemper, F.; De Koter, A.; Waters, L. B. F. M.; Bouwman, J.; Tielens, A. G. G. M. (2002). „Dust and the spectral energy distribution of the OH/IR star OH 127.8+0.0: Evidence for circumstellar metallic iron“. Astronomy and Astrophysics. 384-jild, № 2. 585-bet. arXiv:astro-ph/0201128. Bibcode:2002A&A...384..585K. doi:10.1051/0004-6361:20020036.