Bradley, K. (ed.) (2009) Guidelines on the Production and Preservation of Digital Audio Objects. Second edition. IASA Technical Committee http://www.iasa-web.org/tc04/audio-preservation

Thomas, D. (2011) ‘An Investigation of Aural Space inside Mousa Broch by Observation and Analysis of Sound and Light’. Internet Archaeology 30. http://intarch.ac.uk/journal/issue30/thomas_index.html

Knight, G. & McHugh, J. (2005) Preservation Handbook: Digital Audio. AHDS.

Knight, G. (2010) Significant Properties Testing Report: Audio Recordings. JISC. https://doi.org/10.6084/m9.figshare.7137818.v1