1. G. A. Galazutdinov, “Star echelle spectra processing system. 1. Image processing. 2. Spectra processing,” Preprint No. 92, Spets. Astrofiz. Obs. Ross. Akad. Nauk (Special Astrophysics Observatory, Russian Academy of Science, Nizhnii Arkhyz, 1992).
2. I. M. Kopylov, E. A. Vitrichenko, T. S. Galkina, and O. P. Gollandskii, “Quantitative analysis of the atmospheres of hot supergiants. IV. On physical conditions in the atmospheres of O–F supergiants,” Izv. Krym. Astrofiz. Obs. 30, 42–67 (1963).
3. X. M. Mikailov, V. M. Khalilov, and I. A. Alekberov, “Echelle spectrometer of the focus of the cassegrain of the 2 m telescope of the Shemakhin Astrophysical Observatory of Azerbaijan National Academy of Sciences,” Tsirkulyar Shemakh. Astrofiz. Obs., No. 109, 21–29 (2005).
4. A. A. Mikhailov, A Course in Astrophysics and Stellar Astronomy (Nauka, Moscow, 1962; Israel Program for Scientific Translations, Jerusalem, 1966).
5. A. M. Khalilov and A. R. Gasanova, “Variability of some spectral lines and profiles of Hα lines in the spectrum 89 Her (F2 Ibe),” Astron. Zh. Azerb. 3–4 (2), 20–25 (2007).