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- lcsh's%3a%20libraries %2f information technology%22 2
- lcshs%3a%20libraries %2f information technology%22 2
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Cleverdon, C.W.: Evaluation tests of information retrieval systems (1970)
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Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967)
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- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.