| 2008 | - | Cost and complexity: Selection for speech and language - Locke | :: | |
| Cheney, D.L., Seyfarth, R.M., 2005. Constraints and preadaptations in the earliest stages of language evolution. Linguist. Rev. 22, 135-159.
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| 2007 | - | The Role of Anticipation in the Emergence of Language - Swarup,Gasser | :: | |
| [44] Cheney, D.L., Seyfarth, R.M.: Constraints and preadaptations in the earliest stages of language evolution. Linguistic Review 22 (2005) 135-159
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