Pysarenko , V. M., P. V. Pysarenko, V. V. Pysarenko, O. O. Gorb, and T. O. Chaika. 2019. “Droughts in the Context of Climate Changes in Ukraine”. Scientific Progress & Innovations, no. 1 (March):134-46. https://doi.org/10.31210/visnyk2019.01.18.