1. Heirtzler, J. R., in The Sea, 4, part 1, 85 (edit. by Maxwell, A. E.) (Wiley-Interscience, 1970).
2. Sykes, L. R., Oliver, J., and Isacks, B., in The Sea, 4, part 1, 353 (edit. by Maxwell, A. E.) (Wiley-Interscience, 1970).
3. Le Pichon, X., J. Geophys. Res., 73, 3661 (1968).
4. Pitman, W. C., EOS, Trans. Amer. Geophys. Union, 53, 351 (1972).
5. Menard, H. W., and Chase, T. E., in The Sea, 4, part 1, 421 (edit. by Maxwell, A. E.) (Wiley-Interscience, 1970).