DAVIS, P. J. The plant hormones : Their nature, occurrence, and functions. Plant Hormones : Physiology, biochemistry and molecular biology. 1995, 1-12
ERICKSEN, E. N. Root formation in pea cuttings. I. Effects of decapitation and disbudding at different developmental stages. Physiol. Plant. 1973, 28, 503-506
FADL, M. S. Relationship between seasonal changes in endogenous promoters and inhibitors in pear buds and cutting bases and the rooting of pear hardwood cuttings. Proc. Amer. Soc. Hort. Sci. 1967, 91, 96-112