@book { SegmentberichterstattungEinekonomischeAnalyse,
    title = "Segmentberichterstattung – Eine ökonomische Analyse",
    author = "Bernd {Hacker}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094223"
}