9. L.M. Swift and D.C. Sachs; “Ground Motion Produced by Nuclear Detonations” ; Project
1.8, Operation Hardtack, ITR-1613, August 1958; Stanford Research Institute, Menlo Park,
California; Secret Formerly Restricted Data.
10. “Effects of Stemming on Underground Explosions” ; AFSWP—823, January 1957; Waterways Experiment Station, Corps of Engineers, U.S. Army, Vicksburg, Mississippi; Confidential.
11. “Effects of Explosions in Shallow Water” ; Final Report, AFSWP-—452, April 1955; USA
Waterways Experiment Station, Vicksburg, Mississippi; Confidential.

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