1. M. E. Musgrave, in “Cytokinins. Chemistry, Activity, and Function,” ed. by D. W. S. Mok and M. C. Mok, CRC Press, Boca Raton, FL, 1994, pp. 167–178.
2. K. Koshimizu and H. Iwamura, “Chemistry of Plant Hormones,” ed. by N. Takahashi, CRC Press, Boca Raton, FL, 1986, pp. 153–199.