Lookout Mountain Laboratory USAF: OperationHARDTACK Basic
Effects Structures and Materiel (1958).
Lookout Mountain Laboratory USAF: Operation HARDTACK High Altitude Tests (1958).
National Institute for Occupational Safety and Health: SEC Petition Evaluation Report Petition SEC-00020: Operation HARDTACK I, 2005. - 38 pp. - http://www.cdc.gov/niosh/ocas/pdfs/sec/ppg/ppgevalr.pdf
“Sources of error and uncertainty in methods of estimating radionuclide concentrations in deposited fallout based on measured external photon exposures have not been evaluated, and reliability of methods is unknown. The assumption of no fractionation (except for removal of noble gases) should result in substantial underestimates of concentrations of refractory radionuclides (such as plutonium).”
Defense Threat Reduction Agency: DTRA comments on the SEC Petition 00020 Evaluation Report, 2005. - 24 pp.
U.S. Dept. of the Interior, U.S. Geological Survey: Pacific Enevetak Atoll Crater Exploration (PEACE) Program Enewetak Atoll, Republic of the Marshall Islands. Part 4: Analysis of borehole gravity surveys and other geologic and bathymetric studies in vicinity of OAK and KOA craters / edited by Thomas W. Henry and Bruce R. Wardlaw. U.S. Geological Survey. Open File Report 87-665. Prepared in cooperation with the Defense Nuclear Agency, 1987. - 381 s.
United States Department of Defense: Operation HARDTACK Military Effects Studies: Underwater Tests (1958).
United States Nuclear Tests, July 1945 through September 1992.
U.S. Department of Energy Nevada Operations Office, DOE/NV--209-REV 15, December 2000.
A Visual Description of the Concrete Exterior of the Cactus Crater Containment Structure. / : Terry Hamilton.Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, 2013.
During the Radiological Cleanup of Enewetak Atoll (1972-1980), radioactively contaminated soil was removed by excision and buried inside the Cactus nuclear test crater on Runit Island.