Michczyńska, D. J.; Wieczorek, D.; Wachecka-Kotkowska, L.; Krzyszkowski, D. Climate Oscillations in the 20 000–11 000 Cal BP Range Recorded in the Piaski and Szerokie Formations in the Bełchatów Opencast Lignite Mine: A Look through Radiocarbon Date Analysis. AGL 2022, 112, 123-140.