L.V, ERYGINA, BELYAKOVA E.V, SELIVANOV A.V, and RYZHAYA A.A. 2021. “Methodological Bases for Forecasting Passenger Flow on Regional Airlines”. The Journal of Contemporary Issues in Business and Government 27 (3):2047-55. https://cibgp.com/au/index.php/1323-6903/article/view/1811.