@book { FraueninFhrungspositionen,
    title = "Frauen in Führungspositionen",
    subtitle = "Hemmnisse und Perspektiven",
    author = "Petra {Schmelzer}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832437022",
    url = "https://m.diplom.de/document/219387"
}