Bogataj, David, Samo Drobne, Marija Bogataj, and Valerija Rogelj. Geo-Gerontological Observatory: Lower Sava Region. Maribor, Slovenija: Alma Mater Press, 2023. Accessed May 25, 2026. https://press.almamater.si/index.php/amp/catalog/book/60.