1. Andresen, J. T., et al. (2014). Linguistics and evolution: A developmental approach. Cambridge: Cambridge University Press.
2. Atkinson, Q. D., & Gray, R. D. (2005). Curious parallels and curious connections – Phylogenetic thinking in biology and historical linguistics. Systematic Biology, 54(4), 513–526.
3. Beadle, G., & Beadle, M. (1966). The language of life: An introduction to the science of genetics. Garden City: Doubleday.
4. Brier, S. (2003). Thomas Sebeok: Mister (bio)semiotics. Cybernetics and Human Knowing, 10(1), 102–105.
5. Chomsky, N. (1965). Aspects of the theory of syntax. Cambridge: MIT Press.