"Storkyrkan kan rengöras" (Press release) (in Swedish). Stockholms domkyrkoförsamling. 17 September 2009. Archived from the original on 29 February 2012. Retrieved 19 June 2010.
"Storkyrkan kan rengöras" (Press release) (in Swedish). Stockholms domkyrkoförsamling. 17 September 2009. Archived from the original on 29 February 2012. Retrieved 19 June 2010.