@book { FachkraftKindRelationversusBetreuungsschlsselRealittoderFiktion,
    title = "Fachkraft-Kind-Relation versus Betreuungsschlüssel – Realität oder Fiktion?",
    author = "Tanja {Feder}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15415",
    url = "https://www.peterlang.com/document/1110929"
}