https://cran.r-universe.dev/RESTKhttps://cran.r-universe.dev/api/packages/RESTKhttps://cran.r-universe.dev/RESTK/RESTK.pdfhttps://cran.r-universe.dev/RESTK/doc/manual.htmlhttps://cran.r-universe.dev/RESTK/citationhttps://cran.r-universe.dev/RESTK/citation.txthttps://cran.r-universe.dev/RESTK/citation.cff