Denev, Y., A. Rafetova, and P. Dichev. “Study into the Process of Defective Railtrack Arc-Hardfacing”. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, Vol. 7, no. 1, June 2023, pp. 33-43, doi:10.29114/ajtuv.vol7.iss1.281. Accessed 14 Oct. 2024.