@book { CitizenJournalism,
    title = "Citizen Journalism",
    subtitle = "Global Perspectives",
    author = "Stuart {Allan} and Einar {Thorsen}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1106131"
}