Columbia subject headings:
Folk drama, German--Austria--History and criticism--Congresses.
Folk drama, German--History and criticism--Congresses.
Folk drama, German--Switzerland--History and criticism--Congresses.
Harvard subject headings:
Folk drama, German--History and criticism--Congresses.
German drama--18th century--History and criticism--Congresses.
German drama--19th century--History and criticism--Congresses.
German drama--20th century--History and criticism--Congresses.
Theater--Europe, German-speaking--History--Congresses.
Princeton subject headings:
Folk drama, German--Austria--History and criticism--Congresses.
Folk drama, German--History and criticism--Congresses.
Folk drama, German--Switzerland--History and criticism--Congresses.