@book { ThePostcommunistCleavage,
    title = "The Post-communist Cleavage.",
    subtitle = "Social Bases of Politics in Poland after 1989",
    author = "Mirosława {Grabowska} and Jolanta {Scicińska}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b18040",
    url = "https://www.peterlang.com/document/1068972"
}