Burns, J E (1999) Radiographic exposure slide rules. Br. J. Radiol., 72 (853). pp. 48-54.
Burns, J E (1994) Absorbed dose calibrations in high-energy photon beams at the National Physical Laboratory: conversion procedure. Phys. Med. Biol., 39 (10). 1555 - 1575
Burns, J E; Burns, D T (1993) Comments on 'Ion recombination corrections for plane-parallel and thimble chambers in electron and photon radiation'. Phys. Med. Biol., 38. 1986 - 1988