1. Ronen, S. et al. Links that speak: The global language network and its association with global fame. Proceedings of the National Academy of Sciences 111, E5616–E5622 (2014).
2. Wagner, C., Garcia, D., Jadidi, M. & Strohmaier, M. It's a Man's Wikipedia? Assessing Gender Inequality in an Online Encyclopedia. arXiv arXiv:1501.06307 [cs.CY] (2015).
3. McLuhan, M. Understanding Media: The Extensions of Man (MIT Press, 1964).
4. Eisenstein, E. L. The printing press as an agent of change (Cambridge University Press, 1979).
5. Murray, C. Human Accomplishment (Harper Collins, 2003).