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Ferrer-i-Cancho,Sole, Two regimes in the frequency of words and the origins of complex lexicons: Zipf's law revisited, 2001	::	11
Ferrer-i-Cancho, Zipf's law from a communicative phase transition, 2005	::	2
Ferrer-i-Cancho, The variation of Zipf's law in human language, 2005	::	2