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Remane, A.: System und Klassifikation in der Biologie (1968)
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Baron, W.: Methodologische Probleme der Begriffe Klassifikation und Systematik sowie Entwicklung und Entstehung in der Biologie (1968)
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Fischer, A.: Untersuchungen zur Anwendbarkeit der Facettenklassifikation auf die Biologie (1965)
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