Keldermans & Keldermans 1996, p. 24: "The Mechelen Carillon School opened officially on August 12, 1922, in conjunction with the First Carillon Congress." Keldermans, Karel; Keldermans, Linda (1996). Carillon: The Evolution of a Concert Instrument in North America. Springfield Park District. ISBN0-9652252-0-8. OL1024319M.