Kovács, J., J. Nyéki, Z. Szabó, F. Ligetvári, and M. Soltész. “The Necessity and Possibilities of Irrigation in Fruit Growing under Conditions of Hungary”. International Journal of Horticultural Science 5, no. 3-4 (September 13, 1999): 93–94. Accessed April 19, 2021. https://ojs.lib.unideb.hu/IJHS/article/view/53.