Davies, Simon R., « Digital Avebury: New 'Avenues' of Research », The Institute of Archaeology and Antiquity, University of Birmingham : « The ditches and banks of Avebury henge have yielded radiocarbon dates around 2900–2600 cal BC (Pitts and Whittle 1992), 3040–2780 cal BC (Cleal 2001, 63) and 2840–2460 cal BC (Pollard and Cleal 2004, 121) ».
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« Avebury » [archive du ], The National Trust, The National Trust, (consulté le ).
