00298nas a2200109 4500008004100000245002400041210002400065300001600089490000600105100001600111856006100127 1991 eng d00aTheodore of Studios0 aTheodore of Studios a2044–20450 v31 aKazhdan, A. uhttp://www.scripta-bulgarica.eu/en/biblio/kazhdan1991-10