GAWROŃSKI, R. A., and R. I. KARASIEWICZ-SZCZYPIORSK. “Death of the Saint Clement. The New Evidence Concerning Tradition about Saint’s”. Saeculum Christianum. Historical Writings, vol. 27, no. 1, Sept. 2020, pp. 5-16, doi:10.21697/sc.2020.27.1.1.