See:
- Pearson, M., Pollard, J., Richards, C., Welham, K., Kinnaird, T., Shaw, D., . . . Edinborough, K. (2021). The original Stonehenge? A dismantled stone circle in the Preseli Hills of west Wales. Antiquity, 95(379), 85-103. doi:10.15184/aqy.2020.239
- http://www.stonehengeandaveburywhs.org/