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1Conference Proceeding JournalPublished 1976“…Association for Computing Machinery. Special Interest Group on Management of Data…”
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2Conference Proceeding BookPublished 1989“…Association for Computing Machinery. Special Interest Group on Management of Data…”
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3Conference Proceeding BookPublished 1996“…Association for Computing Machinery. Special Interest Group on Management of Data…”
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4Conference ProceedingPublished 1987“…Association for Computing Machinery. Special Interest Group on Management of Data…”
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5Conference ProceedingPublished 1991“…Association for Computing Machinery. Special Interest Group on Management of Data…”