Columbia subject headings:
Harvard subject headings:
Baltic States--In literature--Congresses.
Baltic States--Intellectual life--18th century--Congresses.
Baltic literature--History and criticism--Congresses.
Enlightenment--Baltic States--Congresses.
German literature--Baltic States--History and criticism--Congresses.
Princeton subject headings:
Baltic States--Civilization--20th century--Congresses.
German literature--Baltic States--History and criticism--Congresses.