1. Characterisation of valves as sound sources: structure-borne sound;Alber;Appl Acoust,2009
2. Sound intensity;Fahy,1995
3. Circulation pumps as structure-borne sound sources: emission to semi-infinite pipe systems;Qi;J Sound Vib,2003
4. prEN 1151-2. Pumps – rotodynamic pumps – circulation pumps having an electrical effect not exceeding 200 W for heating installations and domestic hot water installations – part 2: noise test code (vibro-acoustics) for measuring structure- and fluid-borne noise; 2003.
5. ISO 3822-1. Acoustics – Laboratory tests on noise emission from appliances and equipment used in water supply installations – part 1: method of measurement; 1999.