Unity in the interior: the conservation of the drawing room of the Kockengen vicarage. Bulletin KNOB, [S. l.], v. 99, n. 5, p. 172–178, 2000. DOI: 10.7480/knob.99.2000.5.382. Disponível em: https://bulletin.knob.nl/index.php/knob/article/view/Geldhof172. Acesso em: 21 apr. 2026.