1. Investigation of appropriate measurements to characterise small domestic central pumps as sources of structure-borne sound;Qi;Proceedings of Euronoise,1998
2. B.M. Gibbs, N. Qi, Fluid-borne and structure-borne sound emission from small circulation pumps, Proceedings of the Seventh International Congress on Sound and Vibration, Garmisch-Partenkirchen, 2000, pp. 1597–1604.
3. ISO 3740–3747, Acoustics—Determination of sound power levels of noise sources.
4. E.J.M. Nijman, B.A.T. Petersson, Airborne sound characterisation of automotive engines: the acoustical interface impedance concept, Proceedings of the 17th International Congress on Acoustics, Rome, 6C.12.02, 2001.
5. ISO 10767-1, Hydraulic liquid power—determination of pressure ripple levels generated in systems and components, 1996.