Dawidowicz, Agnieszka, and Monika Sońta. “Comparative Analysis of Selected European National Geoportals”. Acta Scientiarum Polonorum Administratio Locorum 13, no. 2 (May 29, 2019). Accessed November 22, 2024. https://czasopisma.uwm.edu.pl/index.php/aspal/article/view/4208.