T. Goto, Y. Utsumi, S. Kikuta, S. Miyazaki, K. Shiki, and T. Hashimoto. (2017)cite arxiv:1706.04620Comment: Accepted for publication in MNRAS Letters. https://academic.oup.com/mnrasl/article-lookup/doi/10.1093/mnrasl/slx088.
Y. Jeon, M. Im, S. Pak, M. Hyun, S. Kim, Y. Kim, H. Lee, and W. Park. (2016)cite arxiv:1602.02236Comment: 12 pages, 10 figures, 4 tables, accepted for publication in Journal of the Korean Astronomical Society.
C. Gaskell, and R. Goosmann. (2015)cite arxiv:1512.08900Comment: 15 pages, 15 figures. To appear in special issue of Astrophysics and Space Science, "Spectral Line Shapes in Astrophysics".