@book { DieKostenanrechnungsklauselinderDOVersicherung,
    title = "Die Kostenanrechnungsklausel in der D&O-Versicherung",
    author = "Nikolaus {Dickstein}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17200",
    url = "https://www.peterlang.com/document/1058867"
}