Bhattacharya, T., Retzlaff, N., Blasi, D. E., Croft, W., Cysouw, M., Hruschka, D., Maddieson, I., Müller, L., Smith, E., Stadler,
P. F., Starostin, G., & Youn, H. (2018). Studying language evolution in the age
of big data. Journal of Language Evolution, 3(2), 94-129.
doi:10.1093/jole/lzy004.