Johansson, L C; Stroak, A J (2006) Kr-81m calibration factor for the NPL ionisation chamber. Appl. Radiat. Isot., 64. pp. 1360-1364.
Baker, M; Chari, K; Judge, S M; MacMahon, T D; Stroak, A J (2005) A review of commercial radionuclide calibrators. NPL Report. DQL-RN 003
Arinc, A; Woods, D H; Jerome, S M; Collins, S M; Pearce, A K; Gilligan, C R D; Chari, K V; Baker, M; Petrie, N E; Stroak, A J; Phillips, H C; Harms, A V (2004) Environmental radioactivity comparison exercise 2003 (overseas report). NPL Report. DQL-RN 002
Arinc, A; Woods, D H; Jerome, S M; Collins, S M; Pearce, A K; Gilligan, C R D; Chari, K V; Baker, M; Petrie, N E; Stroak, A J; Phillips, H C; Harms, A V (2004) Environmental radioactivity comparison exercise 2003. NPL Report. DQL-RN 001
Woods, D H; Arinc, A; Dean, J C J; Pearce, A K; Collins, S M; Harms, A V; Stroak, A J (2003) Environmental radioactivity comparison exercise 2002 (overseas report). NPL Report. CAIR 5
Woods, D H; Arinc, A; Dean, J C J; Pearce, A K; Collins, S M; Harms, A V; Stroak, A J (2003) Environmental radioactivity comparison exercise 2002. NPL Report. CAIR 1