@book { AusgoldenemBecher,
    title = "«Aus goldenem Becher»",
    subtitle = "Briefe von Georg Britting an Alex Wetzlar- 1939 und 1945 bis 1957",
    author = "Ingeborg {Schuldt-Britting}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096386"
}