@book { GeorgeGerbner,
    title = "George Gerbner",
    subtitle = "A Critical Introduction to Media and Communication Theory",
    author = "Michael {Morgan}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1143788"
}