Sobkowiak-Tabaka I, Werra DH, Hughes RE, Siuda R. Erratic Flint from Poland: Preliminary results of petrographic and geochemical analyses. apolona [Internet]. 2016 Jan. 1 [cited 2024 Nov. 25];54:67-82. Available from: https://journals.iaepan.pl/apolona/article/view/430