Miara, D., J. Matusiak, A. Pietras, M. Świetlik, and S. Zitti. “Application of a Device for the Production of Electrovalves by High Speed Friction Welding HSFW and FSW Welding”. Welding Technology Review, vol. 91, no. 11, Dec. 2019, pp. 33-40, doi:10.26628/wtr.v91i11.1063.