(EN) Patrik Lindenfors, Andreas Wartel e Johan Lind, ‘Dunbar's number’ deconstructed, in Biology Letters, vol. 17, n. 5, Royal Society, 5 maggio 2021, ISSN 1744-957X (WC · ACNP), PMID 33947220. URL consultato il 25 agosto 2023.
«Bayesian and generalized least-squares phylogenetic methods generate approximations of average group sizes between 69–109 and 16–42, respectively. However, enormous 95% confidence intervals (4–520 and 2–336, respectively) imply that specifying any one number is futile. A cognitive limit on human group size cannot be derived in this manner.»