Sándor, G., A. Hajagos, Á. Stumpf, I. Jócsák, and G. Végvári. “The Effect of Timing and IBA Treatments on the Rooting of Plum Rootstock Hardwood Cuttings”. International Journal of Horticultural Science, vol. 16, no. 2, Mar. 2010, pp. 7-10., doi:10.31421/IJHS/16/2/876.