Hocker in Cederlund 2006, p. 39; for more on Äpplet, see (in Swedish) Jan Glete, "Gustav II Adolfs Äpplet" in Marinarkeologisk tidskrift nr 4, 2002. Cederlund, Carl Olof (2006). Hocker, Fred (ed.). Vasa. 1: The Archaeology of a Swedish warship of 1628. Stockholm: National Maritime Museums of Sweden. ISBN91-974659-0-9.
Dal & Hall Roth 2002, p. 38–39 Dal, Lovisa; Hall Roth, Ingrid (2002). "Vasa vittrar". Marinarkeologisk Tidsskrift (4).[2]
Cederlund, Carl Olof & Hocker, Fred "Methodology and Preparation" in Cederlund 2006, pp. 302–305; for the item catalog, see this linkArchived 16 October 2007 at the Wayback Machine. Cederlund, Carl Olof (2006). Hocker, Fred (ed.). Vasa. 1: The Archaeology of a Swedish warship of 1628. Stockholm: National Maritime Museums of Sweden. ISBN91-974659-0-9.
Cederlund, Carl Olof & Hocker, Fred "Methodology and Preparation" in Cederlund 2006, pp. 302–305; for the item catalog, see this linkArchived 16 October 2007 at the Wayback Machine. Cederlund, Carl Olof (2006). Hocker, Fred (ed.). Vasa. 1: The Archaeology of a Swedish warship of 1628. Stockholm: National Maritime Museums of Sweden. ISBN91-974659-0-9.
"Teekkarien kuningasjäynästä puoli vuosisataa" [Half a century after the famous hack by the University of Technology students] (in Finnish). Yle. 28 April 2011. Archived from the original on 14 February 2016. Retrieved 19 February 2016.
"Teekkarien kuningasjäynästä puoli vuosisataa" [Half a century after the famous hack by the University of Technology students] (in Finnish). Yle. 28 April 2011. Archived from the original on 14 February 2016. Retrieved 19 February 2016.