Ralph Cleminson was educated at Oxford and is Professor of Slavonic Studies at University of Portsmouth and Visiting Professor at CEU. Among his specialist interests are the palæography and codicology of medieval Cyrillic manuscripts.Elissaveta Moussakova is art historian. She works in the field of the illumination and codicology of medieval Bulgarian and Byzantine manuscripts. She is a Getty Foundation grantee, and visiting lecturer at CEU, Academy of Fine Arts and the New Bulgarian University.Nina Voutova is philologist, graduated from the University of Šumen (Bulgaria), the only Bulgarian specialist with a doctoral degree in filigranology. She has received grants from the Getty, Mellon and Fulbright Foundations and is a visiting lecturer at the New Bulgarian University and SUN (CEU).