* Ramsden J, "Martin-Baker: 50 years, 5,000 lives, 50,000 seats" "FLIGHT International", 26 May 1979 p1733-1735==External links==* Martin-Baker Aircraft Company Limited* Electronic Library, see "Propulsion Systems Contribution to Success of Aircrew Emergency Escape Systems" (PDF File, pay site)* "Exit In Extremis" a 1948 "Flight" article* "At low altitudes each second is vital - 150ft.
ISBN 1-55125-083-7.