1. Motion and Decay of a Vortex in a Nonuniform Stream
2. R. D. Richtmyer and K. W. Morton,Difference Methods for Intial-Value Problems(Wiley, New York, 1967), p. 190.
3. Numerical solutions of time-dependent incompressible Navier-Stokes equations using an integro-differential formulation
4. G. K. Batchelor,An Introduction to Fluid Dynamics(Cambridge, New York, 1970), p. 528.
5. L. Ting, inAircraft Wake Turbulence, edited by J. H. Olsen, A. Goldberg, and M. Rogers (Plenum, New York, 1971), p. 11.