@book { AktivlebenmitMultiplerSklerose,
    title = "Aktiv leben mit Multipler Sklerose",
    author = "Samira {Mousa}",
    year = "2020",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/514679"
}