https://ropensci.r-universe.dev/rnaturalearthdatahttps://ropensci.r-universe.dev/api/packages/rnaturalearthdatahttps://ropensci.r-universe.dev/rnaturalearthdata/rnaturalearthdata.pdfhttps://ropensci.r-universe.dev/rnaturalearthdata/doc/manual.htmlhttps://ropensci.r-universe.dev/rnaturalearthdata/NEWShttps://ropensci.r-universe.dev/rnaturalearthdata/NEWS.txthttps://ropensci.r-universe.dev/rnaturalearthdata/citationhttps://ropensci.r-universe.dev/rnaturalearthdata/citation.txthttps://ropensci.r-universe.dev/rnaturalearthdata/citation.cff