Twardy, Juliusz, Jacek Forysiak, and Piotr Kittel. 2018. “Periods of Intense Human Impact in Central Poland Recorded in Aeolian, Slope, Fluvial and Organic Deposits: Https: doi.Org 10.26485 AGL 2018 107 7”. Acta Geographica Lodziensia 107 (December):119-36. https://journals.ltn.lodz.pl/Acta-Geographica-Lodziensia/article/view/210.