Werra, D.H., Szeliga, M., Pyżewicz, K. and Burgert, P. 2024. Value, significance and use of ’exotic’ materials – in the light of the presence of obsidian on Neolithic sites in Poland. Sprawozdania Archeologiczne. 76, 1 (Oct. 2024), 71–97. DOI:https://doi.org/10.23858/SA/76.2024.1.3616.