Columbia subject headings:
Art--Conservation and restoration--Switzerland--Bibliography--Periodicals.
Art--Switzerland--Bibliography--Periodicals.
Harvard subject headings:
Art--Conservation and restoration--Switzerland--Bibliography--Periodicals.
Art--Switzerland--Bibliography--Periodicals.
Princeton subject headings:
Architecture--Conservation and restoration--Bibliography.
Art, Swiss--Bibliography.
Art--Conservation and restoration--Bibliography.
Coins--Preservation--Bibliography.
Monuments--Conservation and restoration--Bibliography.