1. “Special Control Valves Reduce Noise and Vibration,”;Arant;Chemical Engineering,1972
2. “How to Cope with Control Valve Noise”;Arant;Instrument Technology,1973
3. “Final Elements: Final Frontier”;Ball;InTech,1986
4. Baumann, H.D., “On the Prediction of Aerodynamically Created Sound Pressure Level of Control Valves,” ASME Paper 70 WA/FE-28, December 1970.
5. Baumann, H.D., “How to Estimate Aerodynamic Valve Throttling Noise: A Fresh Look,” ISA Paper #82–902, 1982.