Кондратенко, Т.Є. and Кондратенко, П.В. 2015. Phenology of apple tree (Malus domestica Borkh.) in Kyiv Oblast in the context of climate change. Plant varieties studying and protection. 1-2(26-27) (Jun. 2015), 49–53. DOI:https://doi.org/10.21498/2518-1017.1-2(26-27).2015.55911.