@book { EinneuesZuhause,
    title = "Ein neues Zuhause?",
    author = "Wolfgang {Hahn}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00655-1",
    url = "https://www.peterlang.com/document/1045724"
}