@book { Kernberufe,
    title = "Kernberufe",
    author = "Georg {Spöttl} and Jessica {Blings}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00909-5",
    url = "https://www.peterlang.com/document/1045792"
}