1. Measurement of fluid flow by means of pressure differential devices — part 1: orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full;International Organization for Standardization,1991
2. Orifice metering of natural gas;American National Standards Institute,1975
3. The flow of water through orifices;Beitler,1935
4. A universal equation for the calculation of discharge coefficients of orifice plates;Stolz,1978