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Dahlberg, I.: Einteilungsprinzipien von Klassifikationssystemen (1974)
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- Source
- DK-Mitteilungen. 18(1974), S.2-5
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Dahlberg, I.: DIN 32705: the German standard on classification systems : a critical appraisal (1992)
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- Source
- International classification. 19(1992) no.4, S.201-204
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Dahlberg, I.: Classification structure principles : Investigations, experiences, conclusions (1998)
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- Pages
- S.80-88