Analysis of information sources in references of the Wikipedia article "Avebury" in Slovenian language version.
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)