Korshіkov I. I., Petrushkevych, Y. M. and Shevchuk, N. Y. (2021) “Expansion of tree and shrub plant species into undisturbed steppe phytocenoses”, Journal of Native and Alien Plant Studies, (1), pp. 160–165. doi: 10.37555/2707-3114.1.2021.247571.