1. Environmental Protection Agency (EPA), A Citizen’s Guide to Radon: The Guide to Protecting Yourself and Your Family from Radon, EPA Report 402-K-09-001, Washington, DC, 2009.
2. World Health Organization (WHO), WHO Handbook on Indoor Radon: A Public Health Perspective (World Health Organization, Geneva, Switzerland, 2009).
3. ICRP, Ann. ICRP 103, 29 (2007).
4. One-year Measurements of Gamma-ray Background Using a High-purity Germanium Detector
5. Radon gamma-ray spectrometry with YAP:Ce scintillator