1. T. Igarashi, 1985: Fluid flow around a bluff body used for Karman vortex flowmeter. InProc. Int. Symposium on Fluid Control and Measurement, FLUCOME'86 Tokyo, 1017?1022.
2. Popiel, C.O. and Turner, J.T., 1990: Vortex flowmeter with two-piece bluff body. Patent applied for on 5th July 1990 by Schlumberger Industries Ltd. Farnborough, Hampshire GU14 7PW, England (File No. 33.109)
3. H. Eisenlohr and H. Eckelman, 1989: Visualization of three-dimensional vortex splitting in the wake of a thin flat plate. InProc. 5th Int Symp. on Flow Visualization, Paper 39, Hemisphere, Prague.
4. H. Eisenlohr and H. Eckelman, 1989: Vortex splitting and its consequences in the vortex wake of cylinders at low Reynolds number.Phys. Fluids A, Fluid Dynamics 1 (2, pp 189?192.
5. C.H.K. Williamson, 1989: Oblique and parallel modes of vortex shedding in the wake of a circular cylinder at low Reynolds numbers.J. Fluid Mech.,206, pp 579?627.