Numismatique et sigillographie https://www.doaks.org/resources/seals/seals-bibliography/morrisson1987 https://www.doaks.org/@@site-logo/news-logo.png C. Morrisson (1987) Numismatique et sigillographie Studies in Byzantine Sigillography, 1:1-25. Keywords Bibliography, Byzantine seals URL http://www.worldcat.org/oclc/32912165