LI, Linzhou. Hedging Strategies of China Eastern Airlines in 2022: Navigating the Dual Shocks of COVID-19 and the Russia-Ukraine War. Highlights in Business, Economics and Management, [S. l.], v. 65, p. 280–285, 2025. DOI: 10.54097/wy88mw59. Disponível em: https://hbemdata.org/index.php/ojs/article/view/47. Acesso em: 23 oct. 2026.