Bełej, Mirosław. “Analysis of Spatial Distribution of Touristic Accommodation in Poland With the Kernel Density Estimation of POIs”. Acta Scientiarum Polonorum Administratio Locorum 20, no. 3 (October 4, 2021): 159–171. Accessed May 6, 2024. https://czasopisma.uwm.edu.pl/index.php/aspal/article/view/6818.