Végvári, Gy., I. Balla, and Z. Kothencz. “The Role of Rejuvenated and Adult Forms of English Oak (Quercus Robur) in in Vitro Cultures”. International Journal of Horticultural Science 5, no. 1-2 (May 24, 1999): 81–83. Accessed May 8, 2024. https://ojs.lib.unideb.hu/IJHS/article/view/29.