1. H. P. Greenspan,The Theory of Rotating Fluids(Cambridge University, Cambridge, 1968), p. 204.
2. Hydromagnetics of rotating fluids
3. Hydromagnetic oscillations of the Earth's core
4. D. J. Acheson, Geophys. J. R. Astron. Soc. (to be published).
5. On the earth's core - mantle interface