CHEREP, Oleksandr; OSMAKOVSKA, Ksenia; LYSHCHENKO, Olena; BOYKO, Ostap. PROBLEMS OF ENERGY EFFICIENCY IN UKRAINE AND INTERNATIONAL EXPERIENCE OF IMPLEMENTATION OF ENERGY EFFICIENCY IN EU COUNTRIES. Herald of Khmelnytskyi National University. Economic sciences, [S. l.], v. 322, n. 5, p. 216–219, 2023. DOI: 10.31891/2307-5740-2023-322-5-36. Disponível em: https://heraldes.khmnu.edu.ua/index.php/heraldes/article/view/387. Acesso em: 28 jan. 2026.