Columbia subject headings:
Harvard subject headings:
Cataloging of manuscripts--Congresses.
Manuscripts, Greek--Editing--Congresses.
Nauchen t︠s︡entŭr za slavi︠a︡no-vizantiĭski prouchvanii︠a︡ "Ivan Duĭchev"--Congresses.
Princeton subject headings:
Cataloging of manuscripts--Congresses.
Manuscripts, Greek--Editing--Congresses.
Nauchen t︠s︡entŭr za slavi︠a︡no-vizantiĭski prouchvanii︠a︡ "Ivan Duĭchev"--Congresses.