Jasaitis, Dainius, and Aloyzas Girgždys. “Hourly Measurement Method for Radon Progeny Volumetric Activity in Air”. Journal of Environmental Engineering and Landscape Management 15, no. 3 (September 30, 2007): 158-165. Accessed November 26, 2024. https://transport.vgtu.lt/index.php/JEELM/article/view/7630.