1. Measurements of indoor radon concentrations in the Santiago de Compostela area;Cortina;J. Environ. Radioact.,2008
2. EERF, 1989. Addendum to EERF Standard Operating Procedures for Rn-222 Measurement Using Charcoal Canisters.
3. Concentration of radon in apartments on the territory of Belgrade in period 1997–2001;Eremić-Savković;Arch. Toxicol., Kinet. Xenobiot. Metab.,2002
4. Grey, D.J., Windham, S.T., 1987. EERF Standard Operating Procedures for Radon-222 Measurement Using Charcoal Canisters. EPA 520/5-87-005.
5. Guide to the Expression of Uncertainty in Measurement;ISO,1995