Dean, J C J; Baker, M; Brosnan, W E; Collins, S M; Johal, S K; Jerome, S M; Keightley, J D; Pearce, A K; Phillips, H C; Scott, C J; Tyler, D K; Woods, M J (2001) Environmental radioactivity comparison exercise 2001. NPL Report. CIRM 49

Brosnan, W E; Baker, M; Collins, S M; Dean, J C J; Johal, S K; de Lavison, P A G; Jerome, S M; Keightley, J D; Scott, C J; Woods, M J (2000) Environmental radioactivity intercomparison exercise 2000. NPL Report. CIRM 35