Mitcham, Grady L. & Blanchard, Willard S., Jr. Low-lift drag and stability data from rocket models of a modified-delta-wing airplane with and without external stores at Mach numbers from 0.8 to 1.36, report, March 26, 1953; (https://digital.library.unt.edu/ark:/67531/metadc59563/m1/1/: accessed April 21, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .