O. V.V., B. Yu.M., K. I.A., L. E.V., U. N.V., and Y. S.V., “Study of surface layers obtained by copper ion implantation into a target of steel 30хгсн2а by auger Spectroscopy methods”, IJET, vol. 7, no. 2.13, pp. 93–102, Apr. 2018, doi: 10.14419/ijet.v7i2.13.11606.