@book { AnderJahrtausendwende,
    title = "An der Jahrtausendwende",
    author = "Christine {Cosentino} and Wolfgang {Ertl} and Wolfgang {Müller}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1094327"
}