Wu, F. and Huberman, B. A.. "Novelty and collective attention." Proc. Natl. Acad. Sci. USA 104 , no. 45 (2007): 17599-17601.

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