1. Garland, G.D.: Phys. Earth Planet. Inter. 10 (1975) 220.
2. Schmucker, U., in: Runcorn, S.K. (ed.), The application of modern physics to the Earth and Planetary Interiors, Wiley-Interscience, London, New York, Sydney, Toronto, 1969, p. 125–138.
3. Schmucker, U., Hartmann, O., Giesecke, A.A., Casaverde, M., Forbush, S.E.: Carnegie Inst. Washington Yearb. 63 (1964) 63 ff.
4. Schmucker, U.: Phys. Earth Planet. Inter. 7 (1973) 365.
5. Schwarz, G., Haak, V., Martinez, E., Bannister, J.: J. Geophys. 55 (1984) 169.