Columbia subject headings:
German literature--20th century--Themes, motives--Congresses.
German literature--21st century--Themes, motives--Congresses.
German literature--Appreciation--Portugal--Congresses.
German literature--History and criticism--Theory, etc.--Congresses.
Harvard subject headings:
German literature--20th century--Themes, motives--Congresses.
German literature--21st century--Themes, motives--Congresses.
German literature--Appreciation--Portugal--Congresses.
German literature--History and criticism--Theory, etc.--Congresses.
Princeton subject headings:
German literature--20th century--Themes, motives--Congresses.
German literature--21st century--Themes, motives--Congresses.
German literature--Appreciation--Portugal--Congresses.
German literature--History and criticism--Theory, etc.--Congresses.