Karadzhov, Tsanko, Dimcho Pulov, and Nikolay Angelov. “CONTACTLESS MEASURING OF TEMPERATURE WITH DIFFERENTIAL PHOTO RECEIVER”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 20, 2019): 101–104. Accessed November 23, 2024. https://journals.ru.lv/index.php/ETR/article/view/4132.