@book { Altenarbeit,
    title = "Altenarbeit",
    subtitle = "Ein Lehrbuch für Sozialbetreuungsberufe",
    author = "Esther {Matolycz}",
    year = "2021",
    publisher = "facultas",
    address = "Wien, Österreich",
    url = "https://campus-lizenzen.facultas.at/document/1152494"
}