Columbia subject headings:
Austria--History--19th century.
Austria--History--20th century.
Österreichische Akademie der Wissenschaften--History.
Harvard subject headings:
Austria--History--19th century.
Austria--History--20th century
Österreichische Akademie der Wissenschaften--History.
Österreichische Akademie der Wissenschaften--Membership.
Research institutes--Austria--Vienna--History.
Princeton subject headings:
Austria--History--19th century.
Austria--History--20th century.
Österreichische Akademie der Wissenschaften--History.