Meaden, G. “Drombeg Stone Circle, Ireland, Analyzed With Respect to Sunrises and Lithic Shadow-Casting for the Eight Traditional Agricultural Festival Dates and Further Validated by Photography”. Journal of Lithic Studies 4, no. 4 (December 31, 2017): 5-37. Accessed April 26, 2024. http://journals.ed.ac.uk/lithicstudies/article/view/1919.