Columbia subject headings:
Harvard subject headings:
Architecture--Conservation and restoration--Germany--Westphalia--20th century.
Buildings--War damage--Germany--Westphalia.
Historic buildings--Conservation and restoration--Germany--Westphalia--20th century.
Monuments--Conservation and restoration--Germany--Westphalia--20th century.
Princeton subject headings:
Architecture--Conservation and restoration--Germany--Westphalia--20th century.
Buildings--War damage--Germany--Westphalia.
Historic buildings--Conservation and restoration--Germany--Westphalia--20th century.
Monuments--Conservation and restoration--Germany--Westphalia--20th century.