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Bookstein, A.; Swanson, D.R.: Probabilistic models for automatic indexing (1974)
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Bookstein, A.; Swanson, D.R.: ¬A decision theoretic foundation for indexing (1975)
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Swanson, D.R.; Smalheiser, N.R.; Bookstein, A.: Information discovery from complementary literatures : categorizing viruses as potential weapons (2001)
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