1. Shame, blame and liability: why safety management suffers organisational learning disabilities;Baram,1997
2. Human error in maintenance: a review;Dhillon;Journal of Quality in Maintenance Engineering,2006
3. FAII, 2006a. IFWA-reports from years 1985–2004. (In Finnish) [Net document] Federation of Accident Insurance Institutions, Helsinki (2006). Referred 15 August 2006. Available: http://www.tvl.fi/asp/system/empty.asp?P=235&VID=default&SID=914357545699489&S=0&C=19967.
4. FAII, 2006b. SAS information delivery portal. (Password-protected portal on accidents resulting in refunds from insurance companies). (In Finnish) [Net document] Federation of Accident Insurance Institutions, Helsinki (2006). Referred 28 August 2006. Available: http://www.svdtilasto.net/.
5. Finnish Industrial Safety Administration, 2007. Industrial safety administration's accident database. (In Finnish) [Net document]. Finnish Industrial Safety Administration, Tampere, Referred 6 May 2007. Available: http://www.tyosuojelu.fi/fi/tapaturmaselostusrekisteri/338.