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Salton, G.; Fox, E.: Extended Boolean information retrieval (1983)
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Harman, D.; Fox, E.; Baeza-Yates, R.; Lee, W.: Inverted files (1992)
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Wartik, S.; Fox, E.; Heath, L.; Chen, Q.-F.: Hashing algorithms (1992)
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Fox, E.; Betrabet, S.; Koushik, M.; Lee, W.: Extended Boolean models (1992)
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