CONCEPTShttp://cat.aii.caas.cn/concept/47996cat.aii.caas.cnhttp://d-nb.info/gnd/4055964-6d-nb.infohttp://eurovoc.europa.eu/863eurovoc.europa.euhttp://lod.gesis.org/thesoz/concept/10058646lod.gesis.orghttp://lod.nal.usda.gov/nalt/21750lod.nal.usda.govhttp://stitch.cs.vu.nl/vocabularies/rameau/ark:/12148/cb119312786stitch.cs.vu.nlhttp://sws.geonames.org/2510769/sws.geonames.orghttp://www.fao.org/countryprofiles/geoinfo/geopolitical/resource/Spainwww.fao.orghttp://zbw.eu/stw/descriptor/17161-5zbw.eu。