Werra DH, Szeliga M, Pyżewicz K, Burgert P. Value, significance and use of ’exotic’ materials – in the light of the presence of obsidian on Neolithic sites in Poland. Spraw. Arch. [Internet]. 2024 Oct. 14 [cited 2024 Oct. 28];76(1):71-97. Available from: https://journals.iaepan.pl/sa/article/view/3616