"Postcodetool for 1948LC". Actueel Hoogtebestand Nederland (in Dutch). Het Waterschapshuis. Retrieved 24 February 2014.
beverwijk.nl
"College van B en W" [Board of mayor and aldermen] (in Dutch). Gemeente Beverwijk. Archived from the original on 15 April 2012. Retrieved 24 February 2014.
"College van B en W" [Board of mayor and aldermen] (in Dutch). Gemeente Beverwijk. Archived from the original on 15 April 2012. Retrieved 24 February 2014.