1. Bewley, J.D., and Black, M., 1982, Physiology and Biochemistry of Seeds, Volume 2, Springer, Berlin, Chapter 6 (ecophysiological aspects of seeds).
2. Bliss, D., and Smith, H., 1985, Plant Cell Environ. 8:475–483 (light and buried seeds).
3. Frankland, B., and Poo, W. K., 1980, in: Photoreceptors and Plant Development (J. DeGreef, ed.), Proc. Ann. Eur. Symp. Plant Photomorphogenesis, University Press, Antwerp, pp. 357-366 (light, canopy, and seed germination).
4. Grime, J. P., 1979, Plant Strategies and Vegetation Processes, Wiley, New York (seed banks, dormancy in the field, temperature effects).
5. Harper, J. L., 1977, Population Biology of Plants, Academic Press, New York, Chapters 2–5 (seed ecology).