Columbia subject headings:
Harvard subject headings:
Art, German--Themes, motives--Congresses.
German literature--History and criticism--Congresses
Space in literature--Congresses.
Time in literature--Congresses.
Princeton subject headings:
Art, German--Themes, motives--Congresses.
German literature--History and criticism--Congresses.
Space in literature--Congresses.
Time in literature--Congresses.