https://lolow.r-universe.dev/gdxtoolshttps://lolow.r-universe.dev/api/packages/gdxtoolshttps://lolow.r-universe.dev/gdxtools/gdxtools.pdfhttps://lolow.r-universe.dev/gdxtools/doc/manual.htmlhttps://lolow.r-universe.dev/gdxtools/NEWShttps://lolow.r-universe.dev/gdxtools/NEWS.txthttps://lolow.r-universe.dev/gdxtools/citationhttps://lolow.r-universe.dev/gdxtools/citation.txthttps://lolow.r-universe.dev/gdxtools/citation.cff