PŁATKOWSKA-PROKOPCZYK L. CONSTRAINTS ON THE SUSTAINABLE DEVELOPMENT OF RURAL AREAS IN THE LIGHT OF INTEGRATION WITH THE EUROPEAN UNION. ees [Internet]. 2020 Dec. 14 [cited 2024 Nov. 22];8:339-56. Available from: https://czasopisma.uni.opole.pl/index.php/ees/article/view/3047