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Heinrich, G.: ¬Die Entwicklung einheitlicher "Regeln für den Schlagwortkatalog" (RSWK) und ihr Stellenwert in der verbalen und klassifikatorischen Sacherschließung (1985)
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- S.1-35
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Haykin, D.J.: Subject headings : fundamental concepts (1985)
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- Footnote
- Original in: Haykin, D.J.: Subject headings: a practical guide. Washington, DC U.S. Government Printing Office 1951. S.7-11.
- Pages
- S.105-111