Columbia subject headings:
Harvard subject headings:
Austria--Boundaries--Hungary--Exhibitions.
Austria--Boundaries--Slovenia--Exhibitions.
Austria--Ethnic relations--Exhibitions.
Hungary--Boundaries--Austria--Exhibitions.
Hungary--Boundaries--Slovenia--Exhibitions.
Slovenia--Boundaries--Austria--Exhibitions.
Slovenia--Boundaries--Hungary--Exhibitions.
Princeton subject headings:
Austria--Boundaries--Hungary--Exhibitions.
Austria--Boundaries--Slovenia--Exhibitions.
Austria--Ethnic relations--Exhibitions.
Hungary--Boundaries--Austria--Exhibitions.
Hungary--Boundaries--Slovenia--Exhibitions.
Slovenia--Boundaries--Austria--Exhibitions.
Slovenia--Boundaries--Hungary--Exhibitions.