@incollection{, E5548CD65B9015526DF4F57EFFF20C2C , author={{OmranAl-Shamma}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}144918 } @incollection{b0, , title={{Cost/Weight Optimization of Aircraft Structures}} , author={{ MKaufmann }} , journal={{KTH school of engineering sciences}} , year={2008} } @book{b1, , title={{Standard method of estimating comparative direct operating costs of turbine powered transport airplanes}} , year={December 1967} , address={ATA} , note={ATA} } @book{b2, , title={{Commercial Aircraft DOC Methods}} , author={{ GVan Bodegraven }} AIAA 90-3224 , year={September 1990} } @incollection{b3, , title={{A survey of recent developments in transportation cost function research}} , author={{ THOum } and { WGWaters }} , journal={{Logistics and Transportation Review}} 32 4 , year={1996} } @incollection{b4, , title={{Interactive aircraft design for undergraduate teaching}} , author={{ OAl-Shamma } and { RAli }} , journal={{Royal Aeronautical Society Conference}} , year={17-19 July, 2012} } @incollection{b5, , title={{Advanced subsonic airplane design and economic studies}} , author={{ RHLiebeck }} , booktitle={{NASA CR-195443}} , year={April 1995} } @book{b6, , title={{Short-Medium range aircraft -AEA requirements}} , year={December 1989} , note={AEA} } @book{b7, , title={{Boeing website}} } @book{b8, , title={{}} , author={{ PSforza }} } @book{b9, , title={{Aircraft design: Synthesis and Analysis}} , author={{ IKroo }} , year={1997-2001} , address={Stanford University, USA} } @incollection{b10, , title={{}} , journal={{Bureau of Labour Statistics}} } @incollection{b11, , title={{Air Transportation Association: www.airtransport.org/ (click on economics and energy}} , booktitle={{drop-down menu click on jobs and labour}} , note={Aerospace Industries Association. at bottom of page under "inside this section" click on airline cost index. which puts you on the page "Quarterly Cost Index : U.S. Passenger Airlines" where links to tables and charts are given} } @book{b12, , title={{ADAC: Aircraft design and consulting}} , author={{ THays }} } @book{b13, , author={{ WwwIata }} , title={{iata.org/ (click on Areas Activity}} , note={dropdown menu click on Economics} } @book{b14, , title={{Aircraft trip cost parameters: A function of stage length and seat capacity}} , author={{ WSwan } and { NAdler }} , year={2006} , note={Transportation research part E} } @book{b15, , title={{Development of interactive aircraft design software for use in Problem-Based Learning}} , author={{ OAl-Shamma }} , year={2013} , address={UK} University of Hertfordshire , note={PhD thesis} }