@book { EssstrungenimLeistungssport,
    title = "Essstörungen im Leistungssport",
    author = "Anne {Schillingmann}",
    year = "2015",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/308998"
}