@book { BetreutesWohnenfrSenioren,
    title = "Betreutes Wohnen für Senioren",
    author = "Dieter {Lange-Lagemann}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836644969",
    url = "https://m.diplom.de/document/227715"
}