@book { DepressionProfessionelleHilfeundBeratung,
    title = "Depression: Professionelle Hilfe und Beratung",
    author = "Ewa {Budna}",
    year = "2015",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/297701"
}