MHAMID, Imen; HAJJI, Asma. Cryptocurrencies in a Sustainable Era: Analyzing the Influence of Environmental Innovation and US Stock Indices on Bitcoin and Ethereum Returns. International Journal of Energy Economics and Policy, [S. l.], v. 16, n. 2, p. 1354–1363, 2026. DOI: 10.32479/ijeep.22614. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/22614. Acesso em: 2 apr. 2026.