1. Dean, J.C.J., Jerome, S.M., 2005. A survey of user requirements for a UK radioactivity measurement infrastructure for nuclear decommissioning. NPL Report DQL RN 009.
2. Dean, J.C.J., 2007. A comparison of procedures used at UK nuclear sites for gamma assays of potentially contaminated or activated materials. NPL Report IR2.
3. Harms, A.V., Gilligan, C.R.D., Arinc, A., Collins, S.M., Jerome, S.M., Johansson, L.C., MacMahon, T.D., Pearce, A.K., 2006. Environmental radioactivity comparison exercise 2005. NPL Report DQL RN 015.
4. Statistical treatment for rejection of deviant values: critical values of Dixon's “Q” parameter and related subrange ratios at the 95% confidence level;Rorabacher;Anal. Chem.,1991