Columbia subject headings:
German poetry--20th century--History and criticism--Congresses.
Polish literature--20th century--History and criticism--Congresses.
Harvard subject headings:
German poetry--History and criticism--Congresses.
German poetry--Translations into Polish--History and criticism--Congresses.
Polish poetry--History and criticism--Congresses.
Polish poetry--Translations into German--History and criticism--Congresses.
Princeton subject headings:
German poetry--20th century--History and criticism--Congresses.
Polish literature--20th century--History and criticism--Congresses.