"Summary of the Work of Division 4"(PDF). Summary Technical Report of the National Defence Research Council (Report). 1946. p. 1. Archived from the original(PDF) on 12 November 2020. Retrieved 26 November 2020.
"Summary of the Work of Division 4"(PDF). Summary Technical Report of the National Defence Research Council (Report). 1946. p. 8. Archived from the original(PDF) on 12 November 2020. Retrieved 26 November 2020.
"Chapter 2 Proximity and Time Fuzes"(PDF). Summary Technical Report of the National Defence Research Council (Report). 1946. pp. 17–18. Archived from the original(PDF) on 12 November 2020. Retrieved 26 November 2020.
"Summary of the Work of Division 4"(PDF). Summary Technical Report of the National Defence Research Council (Report). 1946. p. 1. Archived from the original(PDF) on 12 November 2020. Retrieved 26 November 2020.
"Summary of the Work of Division 4"(PDF). Summary Technical Report of the National Defence Research Council (Report). 1946. p. 8. Archived from the original(PDF) on 12 November 2020. Retrieved 26 November 2020.
"Chapter 2 Proximity and Time Fuzes"(PDF). Summary Technical Report of the National Defence Research Council (Report). 1946. pp. 17–18. Archived from the original(PDF) on 12 November 2020. Retrieved 26 November 2020.