N. T. Dolchinkov, L. Lazov, J. S. Ivanov, S. D. Lilyanova, and A. Pacejs, “USE OF CO2 LASER FOR MARKING AND CLEARING OF TEXTILE MATERIALS FOR MANUFACTURE OF MILITARY EQUIPMENT”, ETR, vol. 3, pp. 32–36, Jun. 2019, doi: 10.17770/etr2019vol3.4201.