Columbia subject headings:
Authors, German--Germany--Frankfurt am Main--History.
German literature--20th century--History and criticism.
German literature--Germany--Frankfurt am Main--History and criticism.
Harvard subject headings:
Authors, German--Germany--Frankfurt am Main--History.
German literature--20th century--History and criticism
German literature--Germany--Frankfurt am Main--History and criticism.
Princeton subject headings:
Authors, German--Germany--Frankfurt am Main--History.
German literature--20th century--History and criticism.
German literature--Germany--Frankfurt am Main--History and criticism.