https://cdk-r.r-universe.dev/rcdklibshttps://cdk-r.r-universe.dev/api/packages/rcdklibshttps://cdk-r.r-universe.dev/rcdklibs/rcdklibs.pdfhttps://cdk-r.r-universe.dev/rcdklibs/doc/manual.htmlhttps://cdk-r.r-universe.dev/rcdklibs/NEWShttps://cdk-r.r-universe.dev/rcdklibs/NEWS.txthttps://cdk-r.r-universe.dev/rcdklibs/citationhttps://cdk-r.r-universe.dev/rcdklibs/citation.txthttps://cdk-r.r-universe.dev/rcdklibs/citation.cff