K. Magyar-Tábori, J. Dobránszky, E. Jámbor-Benczúr, J. Lazányi, and J. Szalai, “Effects of activated charcoal on rooting of in vitro apple (Malus domestics Borkh.) shoots”, Int. j. hortic. sci., vol. 7, no. 1, pp. 98–101., Mar. 2001, doi: 10.31421/IJHS/7/1/258.