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Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1963)
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- Aslib proceedings. 15(1963) no.4, S.106-130
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Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966)
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- Source
- Journal of documentation. 22(1966), S.203-209