Columbia subject headings:
Ballet--Belgium--Flanders--History--20th century.
Ballet--Belgium--Flanders--History--21st century.
Koninklijk Ballet van Vlaanderen--History.
Harvard subject headings:
Ballet--Belgium--Flanders--History--20th century.
Ballet--Belgium--Flanders--History--21st century.
Koninklijk Ballet van Vlaanderen--History.
Princeton subject headings: