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EARTh
The Environmental Applications Reference Thesaurus (EARTh) has been compiled and is maintained by the CNR-IIA-EKOLab to facilitate the indexing, retrieval, harmonizing and... -
TheSoz Thesaurus for the Social Sciences (GESIS)
The Thesaurus for the Social Sciences (Thesaurus Sozialwissenschaften) contains about 12,000 entries, of which more than 8,000 are descriptors (authorised keywords) and about... -
AGROVOC
AGROVOC is a controlled vocabulary covering all areas of interest to the Food and Agriculture Organization of the UN (FAO). AGROVOC is available as and RDF - SKOS linked...