Savchuk, S. V., N. N. Yuvchenko, and V. E. Timofeev. “Regionalization of Ukraine Based on the Influence of Extreme Values of Maximum Air Temperature During Warm and Cold Periods of the Year”. Ukrainian Hydrometeorological Journal, no. 22, Dec. 2018, pp. 46-56, doi:10.31481/uhmj.22.2018.05.