von Hippel, Frank, FAS, to R.R.W., re proposal for "Unilateral Two-Year Moratorium on U.S. Production of Plutonium for Nuclear Weapons" [tls], "The Plutonium Challenge: an Open Letter to the President and the Congress of the United States" [phc], 9/28/1987

von Hippel, Frank, FAS, to R.R.W., re proposal for "Unilateral Two-Year Moratorium on U.S. Production of Plutonium for Nuclear Weapons" [tls], "The Plutonium Challenge: an Open Letter to the President and the Congress of the United States" [phc], 9/28/1987, Box: 4, Folder: 7. Robert R. Wilson papers, 14-22-3093. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/225124 Accessed July 21, 2025.