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Nohr, H.: Tendenzen der OPAC-Entwicklung (1990)
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- Source
- Auskunft. 10(1990), S. -
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Nohr, H.: Sachliche Erschließung in deutschsprachigen Online-Publikumskatalogen (1989)
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- Source
- ABI-Technik. 9(1989), S.207-223
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Nohr, H.: Subject access in german-language OPACs : a survey (1989)
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- Source
- International classification. 16(1989), S.95-100
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Nohr, H.: Zum Sachzugriff über Stichworte in Online-Publikumskatalogen (OPACs) (1991)
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- Source
- Libri. 41(1991), S.165-169