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- author's%3a%22Schweighofer%2c E.%22 2
- authors%3a%22Schweighofer%2c E.%22 2
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Cleverdon, C.W.; Mills, J.; Keen, M.: Factors determining the performance of indexing systems : ASLIB Cranfield research project (1966)
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Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1963)
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