Felföldi, J., N. Ványi, J. Nyéki, Z. Szabó, and M. Soltész. “Economic Figures of Apple Production at National Level of Hungary”. International Journal of Horticultural Science, vol. 17, no. 4-5, Dec. 2011, pp. 103-105., doi:10.31421/IJHS/17/4-5/979.