@book { PoliticalFragmentationoftheSlovakRepublicinLightofRegionalElections,
    title = "Political Fragmentation of the Slovak Republic in Light of Regional Elections",
    author = "Yevheniy {Haydanka}",
    year = "2025",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b23007",
    url = "https://www.peterlang.com/document/1572654"
}