K. Magyar-Tábori, J. Dobránszky, E. Jámbor-Benczúr, J. Lazányi, J. Szalai, and A. Ferenczy, “Effects of indole-3-butyric acid levels and activated charcoal on rooting of in vitro shoots of apple rootstocks”, Int. j. hortic. sci., vol. 8, no. 3-4, pp. 25–28., Oct. 2002, doi: 10.31421/IJHS/8/3-4/356.