SERDIUK , O. SUBSTANTIATION OF DIRECTIONS OF MODERNIZATION OF THERMAL ENERGY FACILITIES: PROBLEMS OF PRELIMINARY ESTIMATION AND AUTOMATION OF CALCULATIONS. Economy of Ukraine, [S. l.], v. 61, n. 4(677), p. 30–45, 2024. DOI: 10.15407/economyukr.2018.04.030. Disponível em: https://nasu-periodicals.org.ua/index.php/economyukr/article/view/2018-04-3. Acesso em: 13 may. 2025.