| Dediu,Ladd, Linguistic tone is related to the population frequency of the adaptive haplogroups of two brain size genes, ASPM and Microcephalin, 2007 | :: | 4 |
| Nettle, Is the rate of linguistic change constant?, 1999 | :: | 10 |
| Nettle, Using Social Impact Theory to simulate language change, 1999 | :: | 27 |
| Smith, The evolution of vocabulary, 2004 | :: | 17 |