Oil and Gas Futures and Options Market. Rudarsko-geološko-naftni zbornik, [S. l.], v. 32, n. 4, p. 45–54, 2017. DOI: 10.17794/rgn.2017.4.5. Disponível em: https://ojs.srce.hr/index.php/rgn/article/view/5011. Acesso em: 24 aug. 2025.