Klavins, Dainis, Lyubomir Lazov, Antons Pacejs, Ritvars Revalds, and Edgars Zaicevs. 2019. “RESEARCH OF LASER MARKING AND ENGRAVING ON BRASS ALLOY 260”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June): 119-23. https://doi.org/10.17770/etr2019vol3.4167.