L. Sims, “A Commentary on L. V. Morrison, ‘On the Analysis of Megalithic Lunar Sightlines in Scotland’, Archaeoastronomy, Supplement of the Journal for the History of Astronomy, 1980, 2: 65–77”, JSA, vol. 5, no. 1, pp. 79–89, Aug. 2019, doi: 10.1558/jsa.38837.