Columbia subject headings:
Ponten, Josef, 1883-1940--Criticism and interpretation.
Harvard subject headings:
German literature--20th century--History and criticism
Liminality in literature.
Ponten, Josef, 1883-1940--Criticism and interpretation.
Ponten, Josef, 1883-1940--Language.
Ponten, Josef, 1883-1940--Political and social views.
Princeton subject headings:
Ponten, Josef, 1883-1940--Criticism and interpretation.