https://tsmodels.r-universe.dev/tsmethodshttps://tsmodels.r-universe.dev/api/packages/tsmethodshttps://tsmodels.r-universe.dev/tsmethods/tsmethods.pdfhttps://tsmodels.r-universe.dev/tsmethods/doc/manual.htmlhttps://tsmodels.r-universe.dev/tsmethods/NEWShttps://tsmodels.r-universe.dev/tsmethods/NEWS.txthttps://tsmodels.r-universe.dev/tsmethods/citationhttps://tsmodels.r-universe.dev/tsmethods/citation.txthttps://tsmodels.r-universe.dev/tsmethods/citation.cff