Miazga, B., Rodak, S., Lucejko, J. J., & Ribechini, E. (2020). A unique early medieval pendant (kaptorga) from Opole Groszowice (Silesia, SW Poland) in the light of interdisciplinary archaeometric studies. Sprawozdania Archeologiczne, 72(2). https://doi.org/10.23858/SA/72.2020.2.2015