https://gianluca-pastorelli.r-universe.dev/spectrakithttps://gianluca-pastorelli.r-universe.dev/api/packages/spectrakithttps://gianluca-pastorelli.r-universe.dev/spectrakit/spectrakit.pdfhttps://gianluca-pastorelli.r-universe.dev/spectrakit/doc/manual.htmlhttps://gianluca-pastorelli.r-universe.dev/spectrakit/citationhttps://gianluca-pastorelli.r-universe.dev/spectrakit/citation.txthttps://gianluca-pastorelli.r-universe.dev/spectrakit/citation.cff