Adamic, L. A. & Huberman, B. A. (2002). Zipf's law and the Internet. Glottometrics 3. 143-150.

Altmann, G. (1980). Prolegomena to Menzerath's law. In Grotjahn, R. (ed.), Glottometrika 2. Bochum: Studienverlag Dr. N. Brockmeyer. 1-10.

Altmann, G. (1986). Zur linguistischen Synergetik: Struktur und Dynamik der Lexik. Bochum: Studienverlag Dr. N. Brockmeyer.

Auerbach, F. (1913). Das Gesetz der Bevo¨lkerungskonzentration. Petermanns Geografische Mitteilungen 59. 73-76.

Bak, P. (1996). How nature works: the science of self-organized criticality. New York: Copernicus.

Baraba´si, A.-L. & Albert, R. (1999). Emergence of scaling in random networks. Science 286. 509-512.

Bellwood, P. (2001). Early agriculturalist population diasporas? Farming, languages and genes. Annual Review of Anthropology 30. 181-207.

Bellwood, P. (2002). Farmers, foragers, languages, genes: the genesis of agricultural societies. In Bellwood & Renfrew (eds.), 17-28.

Bellwood, P. & Renfrew, C. (eds.) (2002). Examining the farming/language dispersal hypothesis. Cambridge: McDonald Institute for Archaeological Research.

Bolloba´s, B., Riordan, O., Spencer, J. & Tusna´dy, G. (2001). The degree sequence of a scale-free random graph process. Random Structures and Algorithms 18. 279-290.

Champernowne, D. G. (1953). A model of income distribution. The Economic Journal 63. 318-351.

Chu, J. & Adami, C. (1999). A simple explanation for taxon abundance patterns. Proceedings of the National Academy of Sciences of the United States of America 96. 15017-15019.

Glassman, S. (1994). A caching relay for the World Wide Web. Computer Networks and ISDN Systems 27. 165-173.

Grimes, B. F. (2000). Ethnologue: languages of the world (14th edn.). Dallas, TX: Summer Institute of Linguistics.

Kanamori, H. & Anderson, D. L. (1975). Theoretical basis of some empirical relations in seismology. Bulletin of the Seismological Society of America 65. 1073-1095.

Laherrere, J. & Sornette, D. (1998). Stretched exponential distributions in nature and economy: `fat tails' with characteristic scales. European Physics Journal B2. 525-539.

Menzerath, P. (1928). U¨ ber einige phonetische Probleme. Actes du premier congre`s international de linguistes. Leiden: Sijthoff. 104-105.

Reed, W. J. & Hughes, B. D. (2002). On the size distribution of live genera. Journal of Theoretical Biology 217. 125-135.

Renfrew, C. (2002). `The emerging synthesis': the archaeogenetics of farming/language dispersals and other spread zones. In Bellwood & Renfrew (eds.), 3-16.

Ruhlen, M. (1987). A guide to the world's languages, vol. 1: Classification. Stanford, CA: Stanford University Press.

Sepkoski, J. J., Jr. (1993). Ten years in the library: new data confirm paleontological patterns. Paleobiology 19. 43-51.

Ueda, H. R., Hayashi, S., Matsuyama, S., Yomo, T., Hashimoto, S., Kay, S. A., Hogenesh, J. B. & Iino, M. (2004). Universality and flexibility in gene expression from bacteria to human. Proceedings of the National Academy of Sciences of the United States of America 101, 11. 3765-3769.

Watson, H. W. & Galton, F. (1875). On the probability of extinction of families. Journal of the Anthropological Institute of Great Britain and Ireland 4. 138-144.

Yule, G. U. (1924). A mathematical theory of evolution, based on the conclusions of Dr. J. C. Willis, F.R.S. Philosophical Transactions of the Royal Society of London (B) 213. 21-87.

Zipf, G. K. (1949). Human behavior and the principle of least effort. Cambridge, MA: Addison- Wesley.