1. Ewing, M., Jardetzky, W., and Press, F., “Elastic Waves in Layered Media”, 198 (McGraw-Hill, 1957).
2. Stoneley, R., Bull. Seis. Soc. Amer., 38, 263 (1948).
3. National Mapping Office, Australia, Map of Antarctica (1956).
4. Oliver, J. E., Ewing, M., and Press, F., Bull. Geol. Soc. Amer., 66, 913 (1955).