Щеглов, О.А. 2018. Winter synoptic processes that cause large anomalies of extreme-low air temperatures in Eastern Europe. Visnyk of V. N. Karazin Kharkiv National University, series "Geology. Geography. Ecology". 49 (Dec. 2018), 169-177. DOI:https://doi.org/10.26565/2410-7360-2018-49-13.