Columbia subject headings:
Harvard subject headings:
Opera--Production and direction--Switzerland.
Theater--Europe, German-speaking--History--20th century.
Theater--Europe, German-speaking--History--21st century.
Theater--Production and direction--Switzerland.
Theatrical producers and directors--Germany.
Theatrical producers and directors--Switzerland.
Wieler, Jossi--Criticism and interpretation.
Wieler, Jossi.
Princeton subject headings:
Theater--Europe, German-speaking--History--20th century.
Theater--Europe, German-speaking--History--21st century.
Theatrical producers and directors--Germany.
Theatrical producers and directors--Switzerland.
Wieler, Jossi--Criticism and interpretation.