Red. dr. A.J.E. Harmsen, Universiteit Leiden.
webarchief 2011
https://web.archive.org/web/20110314135300/http://www.let.leidenuniv.nl/Dutch/Nieuws/DagVers.html
of
webarchief 1998
https://web.archive.org/web/19990128100842/http://www.let.leidenuniv.nl:80/Dutch/Canonisations.html
