DUKERS, Birgit; KL√úCK, Bart J.M.. Venlo, verrassend middeleeuws. Bulletin KNOB, [S.l.], p. 215-225, dec. 2004. ISSN 2589-3343. Beschikbaar op: <https://journals.open.tudelft.nl/index.php/knob/article/view/Dukers215>. Datum gebruik: 13 dec. 2019 doi: https://doi.org/10.7480/knob.103.2004.6.247.