MariL., TáboriZ., ŠulcI., Radeljak KaufmannP., MilanovićR., GessertA., ImecsZ., BariczA. and TelbiszT. (2022) “The system and spatial distribution of protected areas in Hungary, Slovakia, Romania, Serbia and Croatia”, Hungarian Geographical Bulletin, 71(2), pp. 99-115. doi: 10.15201/hungeobull.71.2.1.