1. Acsádi, G., & Nemeskéri, J. (1970). The history of human life span and mortality. Budapest: Akadémiai Kiádo.
2. Bellwood, P. (2013). First migrants: Ancient migration in global perspective. Malden: Wiley-Blackwell Publishing.
3. Bouchaerkt, R., Lemey, P., Dunn, M., Greenhill, S. J., et al. (2011). Mapping the origins and expansion of the indo-European language family. Science, 337(6097), 957–960.
4. Cabana, G. S., & Clark, J. J. (2011). Rethinking anthropological perspectives on migration. Gainesville: University Press of Florida.
5. Cameron, C. M. (2013). How people moved among ancient societies: Broadening the view. American Anthropologist, 115(2), 218–231.