Szabó, T., J. Nyéki, M. Soltész, Z. Szabó, and T. Tóth. “Time of Flowering and Fertilisation of Quince Varieties”. International Journal of Horticultural Science, vol. 5, no. 1-2, May 1999, pp. 9-15., doi:10.31421/IJHS/5/1-2/13.