1. ICAO International
Standards and Recommended Practices —
Environmental Protection; Annex 16, Vol II —
Noise, 3rd edition, 1993.
2. Airbus Global market
forcast 1997-2016, confirming very large demand,
Toulouse, France, 1997.
3. ICAO International
Standards and Recommended Practices —
Environmental Protection; Annex 16, Vol II —
Aircraft engine emissions, 2nd edition,
1993.