GHEORGHE, Catalin; PANAZAN, Oana. Effect of health system performance on volatility during the COVID-19 pandemic: a neural network approach. Journal of Business Economics and Management, [S. l.], v. 25, n. 1, p. 129–152, 2024. DOI: 10.3846/jbem.2024.21059. Disponível em: https://journals.vilniustech.lt/index.php/JBEM/article/view/21059. Acesso em: 6 jun. 2025.