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Devadason, F.J.: Online construction of alphabetic classaurus : a vocabulary control and indexing tool (1985)
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Devadason, F.J.: Postulate-Based Permuted Subject Indexing Language as a metalanguage for computer-aided generation of information retrieval thesaurus (1983)
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Biswas, S.C.; Smith, F.: Efficiency and effectiveness of deep structure based indexing languages : PRECIS vs. DSIS (1991)
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Dewey, M.: Decimal classification and relativ index : introduction (1985)
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Parameswaran, M.: Chain procedure and Dewey Decimal Classification (1990)
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