Wyckoff, H. O., A. Allisy, G. H. Aston, G. P. Barnard, W. Hübner, T. Loftus, and G. Taupin. 1963. “Intercomparison of National Roentgen and Gamma Ray Exposure-Dose Standards”. Acta Oncologica 1 (1):57-78. https://doi.org/10.3109/02841866309135065.