Wichmann, Søren Department of Linguistics, Max Planck Institute for Evolutionary Anthropology, Max Planck Society;
Holman, E. W., Schulze, C., Stauffer, D., & Wichmann, S. (2007). On the relation between structural diversity and geographical distance among languages: Observations and computer simulations. Linguistic Typology, 11(2), 393-421. doi:10.1515/LINGTY.2007.027.