Barczak, Agnieszka. “Models of Time Series With Seasonal Fluctuations in the Forecasting of Passenger Traffic in Air Transport Based on the Study of Wrocław Airport”. Transport Economics and Logistics 80 (December 31, 2018): 17–25. Accessed May 6, 2024. https://czasopisma.bg.ug.edu.pl/index.php/znetil/article/view/2849.