Columbia subject headings:
Harvard subject headings:
German literature--20th century
German literature--Germany--Ruhr River Valley.
Literary prizes--Germany--Ruhr (Region)
Literaturpreis Ruhrgebiet.
Ruhr River Valley (Germany)--Literary collections.
Princeton subject headings:
German literature--20th century.
German literature--Germany--Ruhr River Valley.
Ruhr River Valley (Germany)--Literary collections.