@book { UndeterminedUkrainians,
    title = "‘Undetermined’ Ukrainians",
    author = "Olesya {Khromeychuk}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/978-3-0353-0476-3",
    url = "https://www.peterlang.com/document/1052565"
}