BBC Two - Stonehenge: The Lost Circle Revealedhttps://www.bbc.co.uk/programmes/m000s5xm
Stonehenge - Wikipediahttps://en.wikipedia.org/wiki/Stonehenge
Was Stonehenge a 'Secondhand' Monument? - The New York Timeshttps://www.nytimes.com/2021/02/12/science/stonehenge-archaeology-wales-parker-pearson.html