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