1. M. Zucchetti, Clearance of Activated Materials: The ‘De Minimis’ Problem WMS/TSW1D5/ENEA/1 (Rev. 3), ENEA FUS-TN-SA-SE-R-021, July 2001.
2. Clearance Levels for Radionuclides in Solid Materials: Application of the Exemption Principles, Interim Report for Comment, IAEA TECDOC-855, Vienna, January 1996.
3. Radiation Protection 89-Recommended Radiological Protection Criteria for the Recycling of Metals from the Dismantling of Nuclear Installations, European Commission, Directorate General Environment, Nuclear Safety and Civil Protection, 1998.
4. N. Taylor, I. Cook, Description of SEAFP-2 Plant Models, blankets and structural materials, SEAFP2/5.1/UKAEA/1 (Rev. 0), March 1997.
5. D.G. Cepraga, G. Cambi, M. Frisoni, Neutronic Calculations for SEAFP-2 Plant Models 2 and 3, WMS TSW1D5/ENEA/4 (Rev. 0), ENEA FUS-TN-SA-SE-R-024, July 2001.