https://pgajer.r-universe.dev/griphttps://pgajer.r-universe.dev/api/packages/griphttps://pgajer.r-universe.dev/grip/doc/manual.pdfhttps://pgajer.r-universe.dev/grip/doc/manual.htmlhttps://pgajer.r-universe.dev/grip/NEWShttps://pgajer.r-universe.dev/grip/NEWS.txthttps://pgajer.r-universe.dev/grip/citationhttps://pgajer.r-universe.dev/grip/citation.txthttps://pgajer.r-universe.dev/grip/citation.cff