@book { ContestedEthnicIdentity,
    title = "Contested Ethnic Identity",
    author = "Chris (Hristo) {Kostov}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/978-3-0353-0007-9",
    url = "https://www.peterlang.com/document/1052000"
}