Horváth, A., Z. Orosz-Kovács, D. Surányi, Z. Erdős, S. Gulyás, Á. Farkas, and K. Róka. “Pollen Viability of ‘Besztercei plum’ Clones Depending on the Effect of the Year”. International Journal of Horticultural Science, vol. 6, no. 3, June 2000, pp. 115-121., doi:10.31421/IJHS/6/3/112.