Columbia subject headings:
Architecture--Germany--Lübeck--History.
City planning--Germany--Lübeck--History.
Housing--Germany--Lübeck--History.
Harvard subject headings:
Housing--Germany--Lübeck--History--20th century.
Public housing--Germany--Lübeck--History--20th century.
Princeton subject headings:
Architecture--Germany--Lübeck--History.
City planning--Germany--Lübeck--History.
Housing--Germany--Lübeck--History.