@book { GlobalPoliticsinthe21stCentury,
    title = "Global Politics in the 21st Century",
    author = "Andrzej {Mania} and Marcin {Grabowski} and Tomasz {Pugacewicz}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15385",
    url = "https://www.peterlang.com/document/1063177"
}