1. Ultrasonic flowmeters: half-century progress report, 1955–2005;Lynnworth;Ultrasonics,2006
2. High-frequency transducers and correlation method to enhance ultrasonic gas flow metering;Brassier;Flow Measurement and Instrumentation,2001
3. A new integration technique for flowmeters with chordal paths;Pannell;Flow Measurement and Instrumentation,1990
4. T. Tresch, B.L.U. Scher, T. Staubli, P. Gruber, in: Presentation of Optimized Integration Methods and Weighting Corrections for the Acoustic Discharge Measurement, IGHEM, 2008.
5. Improving acoustic flow measurement;Voser;Water Power & Dam Construction,1996