1. Performance tests for instruments measuring radon activity;Beck;Appl. Radiat. Isot.,2009
2. Burkhart James, F., 1999. NEHA-NRPP, Test Chamber Protocols 〈http://www.radongas.org〉.
3. GUM, 1995. Guide to the Expression of Uncertainty in Measurement, ISO, Geneva, ISBN 92-67-10188-9.
4. IEC 61577, 2000. Radiation Protection Instrumentation – Radon and Radon Decay Product Measuring Instruments – Part 2: Specific Requirements for Radon Measuring Instruments.
5. ISO/IEC 17025, 2005. General Requirements for the Competence of Testing and Calibration Laboratories, Second Edition, p. 14.