1. AENOR, 2010. Seguridad y Salud en el Trabajo – OHSAS 18002:2008. Associacón Espanóla de Normalicación y Certificación, Madrid.
2. Arbetarskydd, 2004. Articles on the Fatal Accident at Stena Gotthard, and on Dnv’s Certification of its Ohs Management System (in Swedish). Tidningen Arbetarskydd, no 2, p. 22; no 4, p. 7; and no 12, pp. 20–21.
3. AV, 2003. Inspektionsmeddelande: Besked om Resultat av Inspektion – Stena Gotthard Atervinning AB (Notice on the Inspection of Stena Gotthard Recycling; i.e., the Inquiry after the Fatal Accident). The Labour Inspection, 2003-04-07, Gothenburg.
4. Beaconfield, 2009. Inquiry into the fatal explosion in the Beaconsfield mine: .
5. A healthy business;Bebek;Quality World,2005