United States Central Intelligence Agency. National Intelligence Estimate. Number 11-2A-63. "The Soviet Atomic Energy Program." page 44."CIA FOIA - Search Results". Archived from the original on May 1, 2008. Retrieved April 28, 2008.
Operation Dominic I(PDF) (Report). Washington, D.C.: Defense Nuclear Agency. 1962. DNA 6040F. Archived(PDF) from the original on March 25, 2021. Retrieved August 5, 2021.
Hoerlin, Herman (October 1976), United States High-Altitude Test Experiences: A Review Emphasizing the Impact on the Environment (LA-6405), LA (Series) (Los Alamos, N.M.) 6405, Los Alamos Scientific Laboratory, p. 4, hdl:2027/mdp.39015086460626 Reference for time zone at Johnston Island 1958–1962.
Operation Dominic I(PDF) (Report). Washington, D.C.: Defense Nuclear Agency. 1962. DNA 6040F. Archived(PDF) from the original on March 25, 2021. Retrieved August 5, 2021.
United States Central Intelligence Agency. National Intelligence Estimate. Number 11-2A-63. "The Soviet Atomic Energy Program." page 44."CIA FOIA - Search Results". Archived from the original on May 1, 2008. Retrieved April 28, 2008.