1. 1. G. A. Galazutdinov. DESN-20 stellar echelle spectra processing system, Preprint No. 92, SAO RAN (Spec. Astrophys. Obs., Nizhny Arkhyz, 1992).
2. 2. L. V. Ksanfomaliti, Solar System, Ed. by V. G. Surdin (Fizmatlit, Moscow, 2012) [in Russian].
3. 3. M. Ya. Marov, Space: From the Solar System and Into the Universe, 2nd ed. (Fizmatlit, Moscow, 2018) [in Russian].
4. 4. Kh. M. Mikailov, V. M. Khalilov, and I. A. Alekperov. Echelle spectrometer of the Cassegrain focus of the 2-m telescope of the Shamakhy Astrophysical Observatory of the National Academy of Sciences of Azerbaijan, Tsirk. ShAO, No. 109, 21-29 (2005).
5. 5. V. I. Moroz, Physics of Planets (Nauka, Moscow, 1967; NASA, Washington, DC, 1968).