Kokora, K. 2019. Glass production in early mediaeval Volin after Jerzy Olczak and Elżbieta Jasiewiczowa – 55 years later. New findings regarding glass objects from site 1 in Wolin. Archeologia Polski. 64, (Dec. 2019), 283–338. DOI:https://doi.org/10.23858/APOL64.2019.008.