Columbia subject headings:
Harvard subject headings:
Bulgaria--Antiquities, Byzantine.
Christian antiquities--Bulgaria--Osenovo.
Christian antiquities--Bulgaria--Ossenovo.
Osenovo (Bulgaria)--Antiquities, Byzantine.
Ossenovo (Bulgaria)--Antiquities, Byzantine.
Tombs--Bulgaria--Osenovo.
Tombs--Bulgaria--Ossenovo Site.
Princeton subject headings:
Christian antiquities--Bulgaria--Osenovo (Varnenski okrŭg).
Tombs--Bulgaria--Osenovo (Varnenski okrŭg).