1. Lange, Ber., 65, 1598 (1932).
2. Saunders, B. C., Ministry of Supply Meeting (London, Dec. 11, 1941). See also Report No. 1 on Fluorophosphonates to Min. of Supply by McCombie, H., and Saunders, B. C. (Dec. 18, 1941).
3. McCombie, H., and Saunders, B. C., Report No. 2 on Fluorophosphonates to Min. of Supply (Feb. 27, 1942).
4. McCombie, H., and Saunders, B. C., Report No. 3 on Fluorophosphonates to Min. of Supply (March 28, 1942).
5. British Secret Patent. Min. of Supply. H. McCombie, B. C. Saunders, N. B. Chapman and R. Heap (April 17, 1944).