Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Speck, Paul and Aslanis, Ioannis and Elbern, Viktor and Severin, Hans-Georg and Krengel, Elke and Nesbitt, John W.",Byzantinische Bleisiegel in Berlin (West),,Habelt,1986,Ποικιλα βυζαντινα,,3774921970,,https://cir.nii.ac.jp/crid/1130282270171282560