"Geschiedenis klooster". Kloostersibculo.nl (in Dutch). Stichting Klooster Sibculo. Archived from the original on 5 March 2016. Retrieved 24 July 2015.
web.archive.org
"Geschiedenis klooster". Kloostersibculo.nl (in Dutch). Stichting Klooster Sibculo. Archived from the original on 5 March 2016. Retrieved 24 July 2015.