Honty, K., É. Sárdi, É. Stefanovits-Bányai, and M. Tóth. “Frost Induced Changes in Enzyme Activities and Carbohydrate Content in the Spurs of Some Pear Cultivars During the Dormancy”. International Journal of Horticultural Science, Vol. 14, no. 1-2., Feb. 2008, pp. 41-44., doi:10.31421/IJHS/14/1-2./780.