Columbia subject headings:
Bühnen der Landeshauptstadt Kiel.
Opera companies--Germany--Kiel--History.
Harvard subject headings:
Bühnen der Landeshauptstadt Kiel--History.
Opera companies--Germany--Kiel--History--20th century.
Opera companies--Germany--Kiel--History--21st century.
Opera--Germany--Kiel--20th century.
Opera--Germany--Kiel--21st century.
Princeton subject headings: