Grigsby, Carl E. Investigation of a canard missile configuration (NACA RM-4) in the Langley 9-inch supersonic tunnel at Mach numbers of 1.62 and 1.93, report, June 24, 1954; (https://digital.library.unt.edu/ark:/67531/metadc60099/m1/1/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .