Farrar, R. Lynn, Jr. Safe Handling of Chlorine Trifluoride and the Chemistry of the Chlorine Oxides and Oxyfluorides, report, November 11, 1960; (https://digital.library.unt.edu/ark:/67531/metadc853039/m1/1/: accessed September 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .