1. Camac, M. & Teare, J. D. 1964 Avco-Everett Res. Lab. Res. Rep. no. 183.
2. Kemp, N. H. 1964 Dept. Mech. Eng. Fluid Mech. Lab., M.I.T., Cambridge, Pub. no. 64–6.
3. Lauver, M. R. 1964 Phys. Fluids,7,611.
4. Hornbeck, J. 1951 Phys. Rev. 84,615.
5. Camac, M. & Kemp, N. H. 1963 Amer. Inst. Aero. Astro. Paper no. 63–460.