Bielec-Bąkowska, Zuzanna, and Ewa Łupikasza. 2009. “FROSTY, FREEZING AND SEVERE FREEZING DAYS AND THEIR SYNOPTIC IMPLICATIONS IN MAŁOPOLSKA, SOUTHERN POLAND, 1951–2000”. Bulletin of Geography. Physical Geography Series, no. 1 (June):39-62. https://doi.org/10.2478/2291.