@book { ManagementderdigitalenTransformation,
    title = "Management der digitalen Transformation",
    author = "Volker {Lingnau} and Gordon {Müller-Seitz} and Stefan {Roth}",
    year = "2017",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1221038"
}