1. Airplane Upsets: Old Problem, New Issues
2. Bramble, W.J., Jr. "Spatial Disorientation AccidentsinLargeCommercialAirplanes:Case Studies and Countermeasures",October 2008IASSFlightSafetyFoundationPaper.
3. Bürki-Cohen,J.,and Sparko,A.L."Airplane Upset Prevention Research Needs",AIAA,2008.
4. McKinney,R. "Illusions: Spatial Disorientation and Loss ofControl",October2008 IASS FlightSafetyFoundationPaper.