1. Lansford, W.M.: The Use Of An Eblo. In: A Pipe Line for Determining the Rate of Flow in the Pipe. University of Illionis Engineering Experiment Station Bulletin (1936)
2. Murdock, J.W.: Performance Charactertistic of Elbow Flow Meters. Trans. of ASME 12(13), 86–102 (1964)
3. Taylor, A.M., Whitelaw, J.H., Yianneskis, M.: Curved Ducts With Strong Secondary Motion: Velocity Measurements of Developing Laminar and Turbulent Flow. Journal of Fluids Engineering 104(23), 350–359 (1982)
4. Mai, C.F., Shi, F., Xu, Z.: Developing Turbulent Flow in A 90° Curved Duct. Journal of Engineering Thermophysics 11(1), 37–40 (1990)
5. Xu, C., Guo, R.W.: Experimental Investigation for Separated Flow in Three-Dimensional Bend Duct. Acta Aeronautica Et Astronautica Sinica 15(9), 1095–1099 (1994)