1. 2) Mok, D.W.S., and Mok, M.C., eds Cytokinins: Chemistry, Activity, and Function. CRC Press, Boca Raton, FL. pp. 384 (1994).
2. 18) Sambrook, J., Fritsch, E.F., and Maniatis, T., Molecular Cloning: A Laboratory Manual, 2nd ed. Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY (1989).
3. 19) Crowell, D.N., and Amasino, M., Cytokinins and plant gene regulation. In Cytokinins: Chemistry, Activity and Function, D.W.S. Mok and M C. Mok, eds. CRC Press, Boca Raton, FL, pp. 233-242 (1994).