Columbia subject headings:
Harvard subject headings:
Danube River Valley--Literary collections.
Danube River Valley--Pictorial works.
German literature--Danube River Valley.
Princeton subject headings:
Authors, Austrian--Homes and haunts--Danube River Valley.
Danube River Valley--In literature.
Danube River--In literature.
Literary landmarks--Austria.
Literary landmarks--Danube River Valley.