Harsányi, Gergely, József Nyéki, Miklós Soltész, István Gonda, and Zoltán Szabó. 2005. “The Future of Apple Growing in the Northern Great Plain Region”. Acta Agraria Debreceniensis, no. 17 (September): 35-38. https://doi.org/10.34101/actaagrar/17/3268.