EUROREGIONS: CHARACTERISTICS AND PRINCIPLES OF FUNCTIONING. Ekon. čas. Volins. nac. unìv. ìm. Lesì Ukraïnki [Internet]. 2021 Jun. 30 [cited 2024 May 2];2(26):34-41. Available from: https://echas.vnu.edu.ua/index.php/echas/article/view/670