1. An Investigation of High Performance Vortex Valves and Amplifiers;Syred;PhD Thesis, Dept. of Mech. Engng, University of Sheffield,1969
2. Saunders D.H. A Study of the Inlet and Outlet Geometry of a Vortex Valve, BHRA Report No. 5R51652B
3. A Design Basis for Vortex-Type Fluid Amplifiers Operating in the Incompressible Flow Regime;Wormley;ASME J. Basic Engng.,1970
4. A Review of Vortex Diode and Vortex Triode Static and Dynamic Design Techniques;Wormley;Fluidics Quarterly,1976
5. Energetics, Synthesis and Application of Vortex Networks;Tippetts,1975