1. Hobelsberger J, Lindener N, Widmann U. Optimizing sound quality of vehicles in an acoustic wind-tunnel by means of a digital measurement system. In: Proceedings of the Sound Quality Symposium, 1998, 99–104.
2. Ruspa G, Schellino G. Sound quality in cars: new ideas, new tools. Society of Automotive Engineers, 1995, paper 951372.
3. Crewe A. Tools for sound quality analysis in complex sound fields. Society of Automotive Engineers, 1994, paper 941792.
4. Van der Auweraer H, Wyckaert K. Sound quality: perception, analysis and engineering. In: Proceedings of the International Seminar on Modal Analysis l993, 1–53.
5. Proceedings of the sound quality symposium,1998