SACHANBIŃSKI, Michał; KÓČKA-KRENZ, Hanna; SKOCZYLAS, Janusz; GIRULSKI, Robert. Gemstones from the ducal part of the fortified settlement of Poznań (10th/11th century) in the light of gemological studies and micro-Raman spectroscopy. Slavia Antiqua. Rocznik poświęcony starożytnościom słowiańskim, [S. l.], n. 55, p. 145–169, 2014. DOI: 10.14746/sa2014LV.4. Disponível em: https://pressto.amu.edu.pl/index.php/sla/article/view/11821. Acesso em: 2 maj. 2024.