https://takahiroshimada.r-universe.dev/SDLfilterhttps://takahiroshimada.r-universe.dev/api/packages/SDLfilterhttps://takahiroshimada.r-universe.dev/SDLfilter/SDLfilter.pdfhttps://takahiroshimada.r-universe.dev/SDLfilter/doc/manual.htmlhttps://takahiroshimada.r-universe.dev/SDLfilter/NEWShttps://takahiroshimada.r-universe.dev/SDLfilter/NEWS.txthttps://takahiroshimada.r-universe.dev/SDLfilter/citationhttps://takahiroshimada.r-universe.dev/SDLfilter/citation.txthttps://takahiroshimada.r-universe.dev/SDLfilter/citation.cff