Henry, John R. & Wilbur, Stafford W. Preliminary investigation of the flow in an annular-diffuser-tailpipe combination with an abrupt area expansion and suction, injection, and vortex-generator flow controls, report, February 10, 1954; (https://digital.library.unt.edu/ark:/67531/metadc59931/m1/1/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .