1. International Standards and Recommended Practices ENVIRONMENTAL PROTECTION: ANNEX 16 to the Convention on International Civil Aviation,1981
2. Procedure for Describing Aircraft Noise heard on the Ground;Acoustics,1978
3. Procedure approved for application in noise certification by the British Airworthiness Authority;Kearsey,1982
4. Collection and Evaluation of Propeller Aircraft Noise Certification Data;Ahlswede;DFVLR-Mitteilung,1981
5. Bekanntmachung der Neufassung der ‘Lärmschutzforderung Luftfahrzeuge (LSL)’,1985