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Sun, Q.; Shaw, D.; Davis, C.H.: ¬A model for estimating the occurence of same-frequency words and the boundary between high- and low-frequency words in texts (1999)
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Arsenault, C.: Aggregation consistency and frequency of Chinese words and characters (2006)
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Egghe, L.: Zipfian and Lotkaian continuous concentration theory (2005)
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Egghe, L.: ¬A new short proof of Naranan's theorem, explaining Lotka's law and Zipf's law (2010)
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Symonds, M.; Bruza, P.; Zuccon, G.; Koopman, B.; Sitbon, L.; Turner, I.: Automatic query expansion : a structural linguistic perspective (2014)
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