Ogryzek, Marek. “STATISTICAL ANALYSIS MODEL FORECASTS DEMOGRAPHIC DEVELOPMENT IN THE EXAMPLE OF OLSZTYN”. Acta Scientiarum Polonorum Administratio Locorum 14, no. 4 (June 18, 2019): 65–73. Accessed April 28, 2024. https://czasopisma.uwm.edu.pl/index.php/aspal/article/view/4336.