https://kakoko1984.r-universe.dev/segMGarchhttps://kakoko1984.r-universe.dev/api/packages/segMGarchhttps://kakoko1984.r-universe.dev/segMGarch/segMGarch.pdfhttps://kakoko1984.r-universe.dev/segMGarch/doc/manual.htmlhttps://kakoko1984.r-universe.dev/segMGarch/citationhttps://kakoko1984.r-universe.dev/segMGarch/citation.txthttps://kakoko1984.r-universe.dev/segMGarch/citation.cff