1. Quade, J., Cerling, T. E. & Bowman, J. R. Nature 342, 163–166 (1989).
2. Prell, W. L., Murray, D. W., Clemens, S. C. & Anderson, D. M. in Synthesis of Results from Scientific Drilling in the Indian Ocean (ed. Duncan, R. A.) 447–469 (Am. Geophys. Union, Washington DC, 1992).
3. Prell, W. L. & Kutzbach, J. E. Science 360, 647–652 (1992).
4. Raymo, M. E. & Ruddiman, W. F. Nature 359, 117–122 (1992).
5. Molnar, P., England, P. & Martinod, J. Rev. Geophys. 31, 357–396 (1993).