1. Lewin, B., 1980, Gene Expression, 2nd ed., John Wiley & Sons, New York.
2. Busch, H. (ed.), 1974–1981, The Cell Nucleus, Volumes 1–8, Academic Press, New York.
3. Stein, G., Stein, J., and Kleinsmith, L. J., 1977–1978, Chromatin and Chromosomal Protein Research, Volumes 1–4 (D. Prescott, ed.), Academic Press, New York.
4. Adams, R. L. P., Burdon, R. H., Campbell, A. M., Leader, D. P., and Smellie, R. M. S., 1981, The Biochemistry of the Nucleic Acids, 9th ed., Chapman & Hall, London.
5. Rappoport, D. A., Maxcy, P., Jr., and Daginawala, H. F., 1969, Handbook of Neurochemistry, Volume 2 (A. Lajtha, ed.), Plenum Press, New York, pp. 241–254.