Sylla, Marta. “MAPPING AND ASSESSMENT OF THE POTENTIAL TO SUPPLY SELECTED ECOSYSTEM SERVICES AT A SUB-REGIONAL SCALE. THE EXAMPLE OF WROCLAW AND ITS SURROUNDING MUNICIPALITIES”. Economics and Environment 59, no. 4 (October 1, 2016): 12. Accessed April 29, 2024. https://www.ekonomiaisrodowisko.pl/journal/article/view/202.