Byzantinische Bleisiegel in Berlin II https://www.doaks.org/resources/seals/seals-bibliography/speck-sode1997 https://www.doaks.org/@@site-logo/news-logo.png P. Speck and C. Sode (1987) Byzantinische Bleisiegel in Berlin II R. Habelt, Bonn. Keywords Bibliography, Byzantine seals URL http://www.worldcat.org/oclc/37850450