@book { DasPatrozinium,
    title = "Das Patrozinium",
    author = "Andreas E. {Graßmann}",
    year = "2016",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b10788",
    url = "https://www.peterlang.com/document/1054833"
}