https://agnerf.r-universe.dev/BiasedUrnhttps://agnerf.r-universe.dev/api/packages/BiasedUrnhttps://agnerf.r-universe.dev/BiasedUrn/BiasedUrn.pdfhttps://agnerf.r-universe.dev/BiasedUrn/doc/manual.htmlhttps://agnerf.r-universe.dev/BiasedUrn/citationhttps://agnerf.r-universe.dev/BiasedUrn/citation.txthttps://agnerf.r-universe.dev/BiasedUrn/citation.cffhttps://agnerf.r-universe.dev/BiasedUrn/doc/UrnTheory.Rtexhttps://agnerf.r-universe.dev/articles/BiasedUrn/UrnTheory.pdf