J. Imants, “De jaarlijkse bijeenkomst vanhet ’international Congressfor School Effectiveness andimprovement’: Norrköping 1993”, Pedagog. Stud., vol. 70, no. 3, Aug. 2023, Accessed: Sep. 20, 2024. [Online]. Available: https://pedagogischestudien.nl/article/view/15199