https://cjerzak.r-universe.dev/lpmechttps://cjerzak.r-universe.dev/api/packages/lpmechttps://cjerzak.r-universe.dev/lpmec/lpmec.pdfhttps://cjerzak.r-universe.dev/lpmec/doc/manual.htmlhttps://cjerzak.r-universe.dev/lpmec/NEWShttps://cjerzak.r-universe.dev/lpmec/NEWS.txthttps://cjerzak.r-universe.dev/lpmec/citationhttps://cjerzak.r-universe.dev/lpmec/citation.txthttps://cjerzak.r-universe.dev/lpmec/citation.cffhttps://cjerzak.r-universe.dev/lpmec/doc/IntroVignette.Rmdhttps://cjerzak.r-universe.dev/articles/lpmec/IntroVignette.html