@book { ChangingTimesGermanyin20thCenturyEuropeLestempsquichangentLAllemagnedanslEuropedu20esicle,
    title = "Changing Times: Germany in 20 th -Century Europe- Les temps qui changent : L’Allemagne dans l’Europe du 20 e  siècle",
    author = "Jürgen {Elvert} and Sylvain {Schirmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1104510"
}