Columbia subject headings:
Harvard subject headings:
Austria--Relations--Spain--Congresses.
Austrian literature--Appreciation--Spain--History--Congresses.
European Union countries--Relations--Congresses.
European literature--Influence--History--Congresses.
Spain--Relations--Austria--Congresses.
Spanish literature--Appreciation--Austria--History--Congresses.
Princeton subject headings:
Austria--Relations--Spain--Congresses.
Austrian literature--Appreciation--Spain--History--Congresses.
European Union countries--Relations--Congresses.
European literature--Influence--History--Congresses.
Spain--Relations--Austria--Congresses.
Spanish literature--Appreciation--Austria--History--Congresses.