Columbia subject headings:
Architecture, Modern--20th century.
City planning.
Landscape design.
Landscape gardening.
Schittek, Norbert, 1946-
Urban beautification.
Harvard subject headings:
Architecture, Modern--21st century
Landscape architects--Germany.
Landscape architecture
Landscape design.
Landscape gardening.
Schittek, Norbert.
Universität Hannover. Zentrum für Gartenkunst und Landschaftsarchitektur--History.
Urban beautification.
Princeton subject headings: