1. Global Air Navigation Plan 2016–2030. Doc 9750-AN/963. Fifth Edn. (2016). https://www.icao.int/publications/Documents/9750_5ed_en.pdf
2. Brutyan, M.: Environmental tax and its role in the innovative development of civil aviation. Econ. Anal. Theor. Prac. 10(265), 22–26 (2012). (in Russian)
3. https://www.gov.kz/memleket/entities/aviation/documents/details/14031?lang=en
4. https://www.gov.kz/memleket/entities/miid/press/news/details/v-aeroportah-11-gorodov-kazahstana-vvoditsya-rezhim-otkrytogo-neba?lang=en
5. Brutyan, M.M.: World market of civil aviation: current state and forecast of development. Eurasian Sci. J. 1(11) (2019). https://esj.today/PDF/20ECVN119.pdf. (in Russian)