Dolchinkov, Nikolaj Todorov. “STATE OF THE POPULATION DISCLOSURE SYSTEMS IN THE CHANGING RADIATION SITUATION IN BULGARIA”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 20, 2019): 54–58. Accessed December 19, 2024. https://journals.rta.lv/index.php/ETR/article/view/4152.