Lazov, Lyubomir, and Tsanko Karadzhov. “METHODS FOR MEASURING LASER POWER”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 16, 2021): 173–180. Accessed May 7, 2024. https://journals.rta.lv/index.php/ETR/article/view/6565.