Columbia subject headings:
Europe--In literature--Congresses.
European drama--21st century--History and criticism--Congresses.
Theater--Europe--History--21st century--Congresses.
Harvard subject headings:
Europe--In literature--Congresses.
Theater--Europe--Congresses.
Theater--Production and direction--Europe--Congresses.
Princeton subject headings:
Europe--In literature--Congresses.
European drama--21st century--History and criticism--Congresses.
Theater--Europe--History--21st century--Congresses.