1. K. V. Alikaeva, K. A. Burlov-Vasil’ev, I. E. Vasil’eva, et al., “Horisontal Solar Telescope ATsU-26 on Caucasus,” Kinem. Fiz. Nebesn. Tel 12(6), 65–74 (1996).
2. A. S. Gadun and V. A. Sheminova, SRANSAT: Calculation Program of Profiles of Spectral Absorbtion Lines in Stellar Atmospheric in LTE Approach (Kiev, 1988) [in Russian].
3. E. A. Gurtovenko and R. I. Kostyk, Fraungofer Spectrum and the System of Solar Forces of Oscillators (Nauk. Dumka, Kiev, 1989) [in Russian].
4. V. O. Danilevs’kii, S. S. Er’omin, and O. O. Rozhilo, “Instrumentation for Spectral Observations of Active Regions on the Sun,” Visn. Kiiv. Univ., Ser. Fiz. Mat. Nauki, No. 6, 96–100 (1992).
5. V. G. Parusimov, “Automatic Digital Two-Coordinate Microphotometer for Input of Photographic Images Into Computer,” Astrom. Astrofiz., No. 45, 86–99 (1981).