Columbia subject headings:
Harvard subject headings:
Subway stations--Social aspects--Austria--Vienna.
Subways--Social aspects--Austria--Vienna.
Vienna (Austria)--Intellectual life.
Vienna (Austria)--Social life and customs--21st century.
Princeton subject headings:
Fiction.
Subway stations--Social aspects--Austria--Vienna.
Subways--Social aspects--Austria--Vienna.
Vienna (Austria)--Intellectual life.
Vienna (Austria)--Social life and customs--21st century.