https://mazamascience.r-universe.dev/beakrhttps://mazamascience.r-universe.dev/api/packages/beakrhttps://mazamascience.r-universe.dev/beakr/beakr.pdfhttps://mazamascience.r-universe.dev/beakr/doc/manual.htmlhttps://mazamascience.r-universe.dev/beakr/NEWShttps://mazamascience.r-universe.dev/beakr/NEWS.txthttps://mazamascience.r-universe.dev/beakr/citationhttps://mazamascience.r-universe.dev/beakr/citation.txthttps://mazamascience.r-universe.dev/beakr/citation.cff