@book { DasKinderzimmer,
    title = "Das Kinderzimmer",
    author = "Heidi {Jörges}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03265-9",
    url = "https://www.peterlang.com/document/1047299"
}