Kovács, S., Á. Molnár, G. Szenci, and M. Tóth. “Commercial Varieties of European Plums Grown in Hungary, a Comparison of Promising Foreign Varieties With the Widely Grown Traditional Ones”. International Journal of Horticultural Science, vol. 18, no. 2, July 2012, pp. 15-22., doi:10.31421/IJHS/18/2/1026.