Origins of medieval lead glass ornaments in Central Europe in the light of lead isotopic analysis of finds from Wrocław and Sypniewo (Poland) Aneta Gójska, Jakub Karasiński, Mariusz Błoński, Renata Czech-Błońska, Aleksandra Pankiewicz, Sylwia Siemianowska, Rafał Siuda, Ewelina Miśta-Jakubowska, Grzegorz Żabiński, Ramkumar Mathur • 2025