Kása, K., Hevesi, M., G. Tóth, M. and Stefanovits-Bányai, É. (2004) “Effect of Erwinia amylovora infection on peroxidase enzyme activity in resistant apple cultivars”, International Journal of Horticultural Science, 10(3), pp. 37–39. doi: 10.31421/IJHS/10/3/503.