@book { VertrauenimVersicherungsvertrieb,
    title = "Vertrauen im Versicherungsvertrieb",
    author = "Volker {Eickenberg}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17536",
    url = "https://www.peterlang.com/document/1059255"
}