@book { BiografiearbeitRatespamitSenioren,
    title = "Biografiearbeit - Ratespaß mit Senioren",
    author = "Susann {Winkler}",
    year = "2015",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403988"
}