Fitzpatrick, James E. & Foster, Gerald V. Static longitudinal aerodynamic characteristics of a 52 degree sweptback wing of aspect ratio 2.88 at Reynolds numbers from 2,000,000 to 11,000,000, report, November 16, 1948; (https://digital.library.unt.edu/ark:/67531/metadc57790/m1/1/: accessed January 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .