University of Lodz - Faculty of Geographical Sciences, affiliation not provided to SSRN, Adam Mickiewicz University, University of Szczecin, Adam Mickiewicz University, affiliation not provided to SSRN, Institute of Archaeology and Ethnology Polish Academy of Sciences, University of Lodz, University of Lodz, University of Lodz, University of Lodz, affiliation not provided to SSRN, Adam Mickiewicz University and University of Lodz - Institute of Archaeology