Stoyanov N, Pandelova A, Georgiev T, Kalapchiiska J, Dzhudzhev B. Forecasting of air pollution with time series and multiple regression models in Sofia, Bulgaria. JEELM [Internet]. 2023Aug.2 [cited 2024Nov.27];31(3):176–185. Available from: https://ijspm.vgtu.lt/index.php/JEELM/article/view/19467