Marsz, A.A. et al. 2021. Role of internal variability of climate system in increase of air temperature in Wrocław (Poland) in the years 1951–2018. Quaestiones Geographicae. 40, 3 (Sep. 2021), 109–124. DOI:https://doi.org/10.2478/quageo-2021-0027.