1. 1Nelson,R.C.,FlightStabilityandAutomaticControl,2nded.,McGraw-HillCompanies,UnitedStates,1998,Chaps.3,4.
2. 3Khoury,G.,andGillet,D.,AirshipTechnology,CambridgeUniversityPress,UK,February1999.
3. 4Gomes, S.B.V , "An Investigation on the Flight Dynamics of Airships with Application to the YEZ-2A," Ph.D Thesis,College ofAeronautics, Cranfield University, October 1990.
4. 5Lamb,H.Sir.,M.A.,LL.D.,Sc.D.,F.R.S.,Hydrodynamics,6thed.,DoverPublications,NewYork,1945,pp.153-155.