@book { BraunkohleundUmwelt,
    title = "Braunkohle und Umwelt",
    subtitle = "Zur Geschichte des nordwestsächsischen Kohlenreviers (1900-1945)",
    author = "Kerstin {Kretschmer}",
    year = "1998",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1085692"
}