1. Theory of wing sections;Abbott,1949
2. Summary of airfoil data;Abbott,1945
3. A method for the direct determination of profile drag;Betz;Zeitschrift fűr Flugtechnik und Motorluftschiffahrt (In German),1925
4. The Langley two-dimensional low-turbulence pressure tunnel;von Doenhoff,1947
5. Flight vehicle aerodynamics;Drela,2014