1. DRAG DUE TO LIFT: Concepts for Prediction and Reduction
2. ChambersJ. R. “Concept to Reality: Contributions of the NASA Langley Research Center to U.S. Civil Aircraft of the 1990s,” NASA SP-2003-4529, Oct. 2003, http://www.archive.org/details/nasa_techdoc_20030059513 [retrieved 2 Dec. 2011].
3. WhitcombR. T. “A Design Approach and Selected Wind-Tunnel Results at High Subsonic Mounted Speeds for Winglets,” NASA TN-D-8260, July 1976.
4. Design of Winglets for High-Performance Sailplanes
5. PrandtlL. “Applications of Modern Hydrodynamics to Aeronautics,” NACA TR-116, 1921.