J. Kovács, J. Nyéki, Z. Szabó, F. Ligetvári, and M. Soltész, “The necessity and possibilities of irrigation in fruit growing under conditions of Hungary”, Int. j. hortic. sci., vol. 5, no. 3-4, pp. 93–94., Sep. 1999, doi: 10.31421/IJHS/5/3-4/53.