Holland at its Highest; Historical continuity and town development (Contributions to the KNOB-Symposium Holland at its Highest): Op de hoogte langs het IJ. Bulletin KNOB, [S. l.], v. 89, n. 6, p. 16–17, 1990. DOI: 10.7480/knob.89.1990.6.536. Disponível em: https://bulletin.knob.nl/index.php/knob/article/view/Dijkstra16. Acesso em: 21 apr. 2026.