https://griefl.r-universe.dev/qadhttps://griefl.r-universe.dev/api/packages/qadhttps://griefl.r-universe.dev/qad/qad.pdfhttps://griefl.r-universe.dev/qad/doc/manual.htmlhttps://griefl.r-universe.dev/qad/NEWShttps://griefl.r-universe.dev/qad/NEWS.txthttps://griefl.r-universe.dev/qad/citationhttps://griefl.r-universe.dev/qad/citation.txthttps://griefl.r-universe.dev/qad/citation.cffhttps://griefl.r-universe.dev/qad/doc/qad-vignette.Rmdhttps://griefl.r-universe.dev/articles/qad/qad-vignette.html