https://philboileau.r-universe.dev/cvCovEsthttps://philboileau.r-universe.dev/api/packages/cvCovEsthttps://philboileau.r-universe.dev/cvCovEst/cvCovEst.pdfhttps://philboileau.r-universe.dev/cvCovEst/doc/manual.htmlhttps://philboileau.r-universe.dev/cvCovEst/NEWShttps://philboileau.r-universe.dev/cvCovEst/NEWS.txthttps://philboileau.r-universe.dev/cvCovEst/citationhttps://philboileau.r-universe.dev/cvCovEst/citation.txthttps://philboileau.r-universe.dev/cvCovEst/citation.cffhttps://philboileau.r-universe.dev/cvCovEst/doc/using_cvCovEst.Rmdhttps://philboileau.r-universe.dev/articles/cvCovEst/using_cvCovEst.html