1. The ISO/IEC-17025: 2005, General Requirements for the Competence of Testing and Calibration Laboratories, International Organization Standardization, 2005.
2. Guide to the Expression of Uncertainty in Measurement,1995
3. JCGM 100:2008, Evaluation of measurement data—guide to the expression of uncertainty in measurement, Joint Committee for Guides in Metrology, 2008.
4. F. De Corte, The k0 Standardization Method—a move to the optimization of NAA, Habilitation Thesis, University of Gent, 1987.
5. Calibration of gamma-ray spectrometers coupled to Compton suppression and fast pneumatic systems for the k0-standardized NAA method