KHVOSTINA, I.M. VOLATILITY OF INTEGRATED INDICATORS SERIES OF OIL AND GAS ENTERPRISES’ FINANCIAL CONDITION AT RISK. The actual problems of regional economy development, [S. l.], v. 2, n. 16, p. 147–158, 2020. DOI: 10.15330/apred.2.16.147-158. Disponível em: https://ktipe.pnu.edu.ua/index.php/aprde/article/view/4582. Acesso em: 4 dec. 2024.