Morgan, J. G.; Morgan, M. T. & Osborne, M. F. FISSION-GAS-RELEASE FROM UO$sub 2$, INTERIM REPORT NO. 1, report, August 16, 1960; (https://digital.library.unt.edu/ark:/67531/metadc869399/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .