GRACZYK A, Jakubczyk Z. INVESTMENTS IN ENYIRONMENTAL PROJECTS AS AN ELEMENT OF A POLICY FOR SUSTAINABLE DEVELOPMENT IN THE REGION OF OPOLE IN 1993-2004 - FROM A STRUCTURAL POINT OF YIEW. ees [Internet]. 2020 Dec. 14 [cited 2024 Nov. 22];8:229-43. Available from: https://czasopisma.uni.opole.pl/index.php/ees/article/view/3037