@book { Whatshappeningincyberspace,
    title = "What’s happening in cyber space?",
    author = "Necla {Keles} and Ahu {Ergen}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b16722",
    url = "https://www.peterlang.com/document/1111330"
}