CONCEPTShttp://dewey.info/class/4/dewey.infohttp://lod.gesis.org/thesoz/concept/10047318lod.gesis.orghttp://lod.nal.usda.gov/nalt/28418lod.nal.usda.govhttp://stitch.cs.vu.nl/vocabularies/rameau/ark:/12148/cb11932109bstitch.cs.vu.nlhttp://zbw.eu/stw/descriptor/15609-4zbw.eu。