Article (newman05power)
Newman, M. E. J.
Power laws, Pareto distributions and Zipf's law
Contemporary Physics, 2005, 46, 323

Article (newman03structure)
Newman, M. E. J.
The structure and function of complex networks
SIAM Review, 2003, 45, 167

Article (adamic02zipf)
Adamic, L. A. & Huberman, B. A.
Zipf's Law and the Internet
Glottometrics, 2002, 3, 143-150

Misc (adamic02tutorial)
Adamic, L.
Zipf, Power-laws, and Pareto -- a ranking tutorial
2002