https://cran.r-universe.dev/ISOweekhttps://cran.r-universe.dev/api/packages/ISOweekhttps://cran.r-universe.dev/ISOweek/ISOweek.pdfhttps://cran.r-universe.dev/ISOweek/doc/manual.htmlhttps://cran.r-universe.dev/ISOweek/NEWShttps://cran.r-universe.dev/ISOweek/NEWS.txthttps://cran.r-universe.dev/ISOweek/citationhttps://cran.r-universe.dev/ISOweek/citation.txthttps://cran.r-universe.dev/ISOweek/citation.cff