Columbia subject headings:
Harvard subject headings:
Lower Austria (Austria)--History, Military--Exhibitions.
Sweden--History, Military--Exhibitions.
Thirty Years' War, 1618-1648--Campaigns--Austria--Lower Austria--Exhibitions.
Princeton subject headings:
Austria--History--1519-1740--Exhibitions--Catalogs.
Thirty Year's War, 1618-1648--Exhibitions--Catalogs.