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author_ss:"Austin, D."
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author_ss:"Digger, J.A."
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language_ss:"e"
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theme_ss:"Preserved Context Index System (PRECIS)"
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Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1977)
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Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1985)
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