Columbia subject headings:
Architecture--Conservation and restoration--Austria.
Historic buildings--Conservation and restoration--Austria.
Monuments--Conservation and restoration--Austria.
Harvard subject headings:
Architecture--Austria--Conservation and restoration.
Architecture--Conservation and restoration--Austria.
Austria--Cultural policy--History--19th century.
Historic buildings--Conservation and restoration--Austria.
Princeton subject headings:
Architecture--Austria--Conservation and restoration.
Historic buildings--Austria--Conservation and restoration.
Monuments--Austria--Conservation and restoration.