<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Hong, N. Chue et al.</hi> (2010): "Software Preservation Benefits Framework. Software Sustainability Institute Technical Report", Edinburgh, The Software Sutainability Institute <ref xmlns="http://www.tei-c.org/ns/1.0" target="http://www.research.ed.ac.uk/portal/files/1219870/SoftwarePreservationBenefitsFramework.pdf">http://www.research.ed.ac.uk/portal/files/1219870/SoftwarePreservationBenefitsFramework.pdf</ref> [letzter Zugriff am 25.09.2017].