1. International Standardisation Organisation, ISO 5167-1. Measurement of fluid flow by means of pressure differential devices. Part I: Orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full, 1991.
2. Effects of pipe elbows and tube bundles on selected types of flowmeters;Mattingly;J. Flow Meas. Instrum.,1991
3. Mottram RC, Rawat MS. The swirl damping properties of pipe-roughness and the implications for orifice meters installation. In: Int. Conf. on Flow Measurement in the Mid-eighties, paper 6.1. Scotland: National Engineering Laboratory, 1986.
4. Experimental study of turbulent swirling flow in a straight pipe;Kitoh;J. Fluid Mech.,1991
5. The computation of turbulent flow through pipe fittings and the decay of the disturbed flow in a downstream straight pipe;Langsholt;J. Flow Meas. Instrum.,1991