CONCEPTShttp://d-nb.info/gnd/4045539-7d-nb.infohttp://d-nb.info/gnd/4397499-5d-nb.infohttp://linkeddata.ge.imati.cnr.it:2020/resource/EARTh/41530linkeddata.ge.imati.cnr.ithttp://lod.nal.usda.gov/nalt/58546lod.nal.usda.govhttp://www.eionet.europa.eu/gemet/concept/6313www.eionet.europa.eu。