Petrovs, Aleksejs, and Imants Adijāns. “LATGALES CERAMIC ENGRAVING WITH CO2 LASER”. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, no. 25 (April 23, 2021): 151–155. Accessed November 24, 2024. https://journals.rta.lv/index.php/HET/article/view/6796.