1. Simple core undertones;Crossley;Geophys. J. R. astr. Soc.,1980
2. On the excitation, detection and damping of core modes;Crossley;Phys. Earth planet. Inter.,1991
3. Internal oscillations in the Earthapos;s fluid core;Friedlander;Geophys. J. R. astr. Soc.,1985
4. Friedlander, S., 1988. Stability and waves in the Earthapos;s fluid core, in Proc. U.S.-Italy Conference on Energy Stability and Convection, Capri, May 1986, Longman Scientific Press Pitman Reseach Notes in Mathematics, Vol. 168, pp. 325-345, ed. Straughan, B., Longman, London.
5. An application of normal mode theory to the retrieval of structural parameters and source mechanisms from seismic spectra;Gilbert;Phil. Trans. R. Soc. Lond., A,1975