Racskó, József, József Nyéki, Zoltán Szabó, Miklós Soltész, and Ervin Farkas. 2004. “Effect of Rootstocks on Blooming Capacity and Productivity of AppleCultivars”. Acta Agraria Debreceniensis, no. 15 (December):14-20. https://doi.org/10.34101/actaagrar/15/3351.