Stoyanova, A.M. et al. 2017. Study of the influence of the technological parameters of the air-plasma surface gouging on some quality characteristics in the surface layer. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA. 1, 1 (Dec. 2017), 105–111. DOI:https://doi.org/10.29114/ajtuv.vol1.iss1.29.