1. Mercer, J. H., Int. Ass. Sci. Hydrol. Publ. No. 79, 217 (1968).
2. Hughes, T., J. Geophys. Res., 78, 7884 (1973).
3. Thomas, R. H., and Eilers, D., Antarct. J., 10, 149 (1975).
4. Clough, J. W., and Robertson, J. D., Antarct. J., 10, 153 (1975).
5. Bull, C., in Research in the Antarctic (edit. by Quam, L.), 367–421 (American Association for the Advancement of Science, Washington DC, 1971).