Kejna, Marek, and Aleksandra Pospieszyńska. “The Variability of Thermal Winters in Poland in the Years 1960 61–2024 25”. Acta Geographica Lodziensia 118 (December 21, 2025): 125–148. Accessed February 3, 2026. https://czasopisma.ltn.lodz.pl/Acta-Geographica-Lodziensia/article/view/3343.