@book { UnderstandingPolitics,
    title = "Understanding Politics",
    author = "Tadeusz {Klementewicz}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11853",
    url = "https://www.peterlang.com/document/1067770"
}