Gunston, p. 126 ↩
Leyes, p. 213-216 ↩
"LHTEC wins T800 fight" (PDF). Flight International. 5 November 1988. p. 2. Retrieved 21 February 2019. https://www.flightglobal.com/FlightPDFArchive/1988/1988%20-%203148.PDF#navpanes=0&search='LHTEC'&scrollbar=0&page=1&view=FitH,0 ↩