1. FederalAviationAdministration[FAA], AirplaneUpsetRecoveryTrainingAid,Revision2.FAA,Washington,DC,2008.
2. Airplane Upsets: Old Problem, New Issues
3. Bureau d'Enquetes et d'Analyses [BEA], "Accident on 27 November 2008 off the coast of Canet-Plage (66) to the Airbus A320-232registeredD-AXLAoperatedbyXLAirways Germany",BEA,LeBourgetCedex,France,September2010.