Benedek, P. “Some Flower Characters, Variety Features and Environmental Effects Affecting Bee Pollination of Pear (Pyrus Communis L.): A Review of the Results of Latest Research”. International Journal of Horticultural Science, vol. 6, no. 3, June 2000, pp. 59-66., https://doi.org/10.31421/IJHS/6/3/104.