DENEV, Yordan Stefanov; RAFETOVA, Aylin; DICHEV, Plamen. Study into the process of defective railtrack arc-hardfacing. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, [S. l.], v. 7, n. 1, p. 33–43, 2023. DOI: 10.29114/ajtuv.vol7.iss1.281. Disponível em: https://aj.tu-varna.bg/index.php/ajtuv/article/view/281. Acesso em: 2 oct. 2025.