ANTONOV, Georgi Stefanov; NIKOLOV, Dian Nikiforov. Steel X65 acc. API 5L behaviour, under the influence of CO2 and H2. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, [S. l.], v. 8, n. 2, p. 10–20, 2024. DOI: 10.29114/ajtuv.vol8.iss2.323. Disponível em: https://aj.tu-varna.bg/index.php/ajtuv/article/view/323. Acesso em: 2 oct. 2025.