https://paulgovan.r-universe.dev/energyrhttps://paulgovan.r-universe.dev/api/packages/energyrhttps://paulgovan.r-universe.dev/energyr/energyr.pdfhttps://paulgovan.r-universe.dev/energyr/doc/manual.htmlhttps://paulgovan.r-universe.dev/energyr/NEWShttps://paulgovan.r-universe.dev/energyr/NEWS.txthttps://paulgovan.r-universe.dev/energyr/citationhttps://paulgovan.r-universe.dev/energyr/citation.txthttps://paulgovan.r-universe.dev/energyr/citation.cff