https://us-bea.r-universe.dev/bea.Rhttps://us-bea.r-universe.dev/api/packages/bea.Rhttps://us-bea.r-universe.dev/bea.R/bea.R.pdfhttps://us-bea.r-universe.dev/bea.R/doc/manual.htmlhttps://us-bea.r-universe.dev/bea.R/citationhttps://us-bea.r-universe.dev/bea.R/citation.txthttps://us-bea.r-universe.dev/bea.R/citation.cff