1. Nonplanar wing concepts for increased aircraft efficiency;Kroo,2005
2. Biomimetic spiroid winglets for lift and drag control;Guerrero;C. R. Mecanique,2012
3. A Design Approach and Selected Wind Tunnel Results at High Subsonic Speeds for Wingtip Mounted Winglets;Whitcomb,1976
4. Assessment of Wingtip Modifications to Increase the Fuel Efficiency of Air Force Aircraft;Board, Air Force Studies, and National Research Council,2007
5. Blended winglets;Faye;Aero Boeing,2002