Morrison, William D., Jr. & Alford, William J., Jr. Effects of Horizontal-Tail Position and a Wing Leading-Edge Modification Consisting of a Full-Span Flap and a Partial-Span Chord-Extension on the Aerodynamic Characteristics in Pitch at High Subsonic Speeds of a Model With a 45 Degree Sweptback Wing, report, June 1957; (https://digital.library.unt.edu/ark:/67531/metadc56280/m1/1/: accessed April 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .