¹⁵Graeber, David, and David Wengrow. The Dawn of Everything: A New History of Humanity. Penguin Books Ltd, 202,. p. 147.
The authors noted a number of occasions in which Neolithic subsistence communities tried, and then abandoned cultivation., only to take it up again at a later stage.
The 2013 study re-examining Burrenhult's dating methods and his interpretations is: Bergh, Stefan, and Robert Hensey. “Unpicking the Chronology of Carrowmore.” Oxford Journal of Archaeology, vol. 32, no. 4, 2013, pp. 343–366.
There is additional dating information from the causewayed enclosure at Magheraboy, not far from the Abbeyquarter tomb.