@book { Russland1905,
    title = "Russland 1905",
    subtitle = "Perspektiven auf die erste Russische Revolution",
    author = "Martin {Aust} and Ludwig {Steindorff}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103023"
}