Samól , P. 2018. Borrowing Images of Empire: The contribution of research on the artistic influence of the Holy Roman Empire on Polish Romanesque architecture in the eleventh and twelfth centuries. Studia z Dziejów Średniowiecza. 22 (grudz. 2018), 206–223. DOI:https://doi.org/10.4467/25442562SDS.18.014.9816.