Nagy, P. T., I. Kincses, J. Nyéki, T. Szabó, M. Soltész, and Z. Szabó. “Effect of Late Spring Frost Event on Nutrition Aspects of a Sour Cherry Orchard in East Hungary”. International Journal of Horticultural Science, vol. 17, no. 4-5, Dec. 2011, pp. 93-97., doi:10.31421/IJHS/17/4-5/977.