| 2008 | - | Is a holistic protolanguage a plausible precursor to language? A test case for a modern evolutionary linguistics - Smith | :: | 1 |
| Fitch, W. T. (2005). The evolution of language: A comparative review. Biology and Philosophy, 20, 193-230.
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| 2006 | - | The biology and evolution of music: a comparative perspective - Fitch | :: | |
| Fitch, W. T. (2005). The evolution of language: A comparative review. Biology and Philosophy, 20, 193-200.
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