M. M. Chernykh1, A. E. Dryukova, P. A. Ostanina, and E. V. Kargashina, “Management of Aesthetic Properties of Engravings Obtained Using Laser”, IJET, vol. 7, no. 4.25, pp. 230–231, Nov. 2018, doi: 10.14419/ijet.v7i4.25.26928.