Butkus, Donatas, Gendrutis Morkūnas, and Laima Pilkyte. “Ionizing Radiation in Buildings: Situation and Dealing With Problems”. Journal of Environmental Engineering and Landscape Management 13, no. 2 (June 30, 2005): 103-107. Accessed November 23, 2024. https://btp.vgtu.lt/index.php/JEELM/article/view/8041.