Columbia subject headings:
Architecture--Conservation and restoration--Periodicals.
Art, German--Periodicals.
Art--Periodicals.
Monuments--Conservation and restoration--Periodicals.
Harvard subject headings:
Princeton subject headings:
Architecture--Conservation and restoration--Periodicals.
Architecture--Germany--Periodicals.
Art, German--Periodicals.
Art--Periodicals.
Monuments--Conservation and restoration--Periodicals.
Periodicals.