https://ardiad.r-universe.dev/RSDChttps://ardiad.r-universe.dev/api/packages/RSDChttps://ardiad.r-universe.dev/RSDC/RSDC.pdfhttps://ardiad.r-universe.dev/RSDC/doc/manual.htmlhttps://ardiad.r-universe.dev/RSDC/NEWShttps://ardiad.r-universe.dev/RSDC/NEWS.txthttps://ardiad.r-universe.dev/RSDC/citationhttps://ardiad.r-universe.dev/RSDC/citation.txthttps://ardiad.r-universe.dev/RSDC/citation.cff