@book { Revolutions,
    title = "Revolutions",
    subtitle = "Reframed – Revisited – Revised",
    author = "Agata {Stopinska} and Anke {Bartels} and Raj {Kollmorgen}",
    year = "2007",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1103784"
}