Vaughan, D. A.; Cocks, G. G. & Schwartz, C. M. Identification of Slag Constituents From Uranium Metal Production Bombs, report, January 31, 1952; (https://digital.library.unt.edu/ark:/67531/metadc877730/m1/1/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .