Columbia subject headings:
Bulgarian literature--Middle Bulgarian--History and criticism--Periodicals.
Church Slavic literature--History and criticism--Periodicals.
Harvard subject headings:
Bulgarian literature--To 1762--History and criticism--Periodicals.
Church Slavic literature--History and criticism--Periodicals.
Princeton subject headings:
Bulgarian literature--To 1762--History and criticism--Periodicals.
Church Slavic literature--History and criticism--Periodicals.
Periodicals.