TULCHYNSKA, S., 		POPELO, O., 		MARHASOVA, V., 		NUSINOVA, O., & 		ZHYGALKEVYCH, Z.
(2021).
 Monitoring of the Ecological Condition of Regional Economic Systems in the Context of Sustainable Development.
<em>Journal Of Environmental Management And Tourism, 12</em>(5), 1220-1228.
doi:10.14505//jemt.v12.5(53).06