Mottard, Elmo J. & Loposer, J. Dan. Average Skin-Friction Drag Coefficients From Tank Tests of a Parabolic Body of Revolution (NACA RM-10), report, 1954; (https://digital.library.unt.edu/ark:/67531/metadc60535/m1/1/: accessed January 18, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .