@book { StarkeJungsbrauchenentspannteEltern,
    title = "Starke Jungs brauchen entspannte Eltern",
    author = "Julia {Scharnowski}",
    year = "2020",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/535901"
}