Review of the departure noise limits at Heathrow, Gatwick and Stansted airports /
Cadoux,  R. E.
Ollerhead, J. B.
National Air Traffic Services (Great Britain).Research and Development Directorate.
Great Britain.Civil Aviation Authority.
Great Britain.Department of Transport.
London : Civil Aviation Authority,
1995.
"Prepared by the Civil Aviation Authority on behalf of the Department of Transport, London, December 1995."