Columbia subject headings:
Däubler, Theodor. Nordlicht--Influence.
Schmidt, Arno, 1914-1979--Criticism and interpretation.
Harvard subject headings:
Däubler, Theodor. Nordlicht--Appreciation.
German literature--19th century--History and criticism
German literature--20th century--History and criticism
Schmidt, Arno,--Knowledge--Literature.
Princeton subject headings:
Däubler, Theodor. Nordlicht--Influence.
Schmidt, Arno, 1914-1979--Criticism and interpretation.