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Thesaurofacet: a thesaurus and faceted classification for engineering and related subjects (1969)
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- BK
- 33.00 Physik: Allgemeines
- Classification
- 33.00 Physik: Allgemeines
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Root thesaurus. Pt.1.2 (1985)
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- Date
- 18. 5.2007 14:22:43