https://kogalur.r-universe.dev/varProhttps://kogalur.r-universe.dev/api/packages/varProhttps://kogalur.r-universe.dev/varPro/varPro.pdfhttps://kogalur.r-universe.dev/varPro/doc/manual.htmlhttps://kogalur.r-universe.dev/varPro/NEWShttps://kogalur.r-universe.dev/varPro/NEWS.txthttps://kogalur.r-universe.dev/varPro/citationhttps://kogalur.r-universe.dev/varPro/citation.txthttps://kogalur.r-universe.dev/varPro/citation.cff