@book { SerbiaandByzantium,
    title = "Serbia and Byzantium",
    subtitle = "Proceedings of the International Conference Held on 15 December 2008 at the University of Cologne",
    author = "Mabi {Angar} and Claudia {Sode}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1109493"
}