Pulov, Dimcho, and Tsanko Karadzhov. “OPTOELECTRONIC DEVICE FOR MEASURING THE POWER OF LASER RADIATION”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 16, 2021): 286–290. Accessed May 17, 2024. https://journals.rta.lv/index.php/ETR/article/view/6590.